Pothole Bunnies markers of road holes to notify drivers and prevent damage and danger
Our town has very poorly maintained roads. Especially in the beginning of the  rainy season potholes are so numerous, large, and dangerous that pointing  them out to drivers can do a considerable public service in preventing damage  to vehicles, further wear of the pothole, an uncomfortable ride, and possibly  even accidents resulting from driving through potholes. Our contribution to this  end is to design a very low cost pothole marker which the public can make and  install. And thus to facilitate the beginning of such a social movement.       In essence a PotHole Bunny is a cutout from a ‘coke’ bottle, whitened, and  glued into a hole in the road  - as if a rabbit were poking its head above ground  from its hole. A driver will notice a stark silhouette rising into their plane of travel  long in advance of noticing a uni-toned depression in the road. With earlier  information drivers can make compensations to avoid the hole and avoid  the  dangerous situation of last second corrections.        Some key features of the PotHole Bunnies are that they are made of thin,  flexible plastic (so no damage to cars that do drive over them); they are cut from  2 litre ‘coke’ bottles (so materials are ubiquitous, cheap, expendible, and re-  using the bottles is actually up-cycling); they are highly visible with no small  parts and crisp edges; and they are about as durable as one could hope for in a  marker which has these other qualities and which stands right in the firing line.          
- from a designers perspective - The greatest considerations for an installation like this are the safety of road users, prevention of damage to their vehicles, durability of the marker, and  effectiveness. By using PET ‘coke’ bottles we obtain a tough raw material ‘for free’. By making the marker smaller than what the bottle size would allow we  create something that fits into the size range that drivers are comfortable to pass over (the bunnies don’t appear as if they will damage a car). So that  drivers don’t detour vastly around the pothole. In this way the markers don’t create a hazard (eg: drivers going out of their lanes) while they address a  hazard (drivers swerving when they see a pothole late). By colouring the back surface of the plastic any possible contact with colliding vehicles’ aesthetic  finishes is made by the clear, low friction PET plastic of the bottle, and coloured finish cannot rub off onto colliding vehicles.   PotHole Bunnies are thus the best possible marker for a less thatn ideal situation of terrible road condition. 
Of course, the pothole marker needn’t be a bunny form. We’ve seen flowers (which looked like a lot of detail and effot to produce), etc.. But for its simplicity  and potency as a silhouette image, the bunny head poking out of its pothole seems perfect. The bunny shape follows lines formed in the coke bottle and is  therefore very easy to make.  The region in which many of the pothole bunnies have been installed is also semi-rural. A combination of hunting, hunting with dogs, and stray or  unrestrained dogs grouping into packs to hunt at night have pretty much removed rabbits and hares from the ecosystem. The ghostly PotHole Bunnies  (ghostly appearance resulting from the use of white backing, and the thinnest application of the backing possible in order to reduce cost) are thus social  commentary on the degradative consequences of high density presence of man in more ways than one. 
Stones glued to the pothole floor through holes in the base of the bunny act like bolt heads to hold the bunny down. Placed near the front of the hole, the structural base of the bunny won't sustain as much of a direct hit as the wheel is still falling into the hole. Visible from afar, alert ears sense the presence of an oncoming car and quiver in the wind. This is an open-use design
Materials - A PET (coke) bottle. 2 litre bottles are usual, but smaller potholes may suit smaller bottles. - Some white silicone caulking, or white paint such as a spray can. - Black marker pen. - Epoxy resin glue (quick setting). - Glue mixing dish and sticks. - Scissors and perhaps a knife and saw. Preparation Clean and dry the bottle, and remove the labelling.  Mark out the intended shape  For the purpose of these instructions, we’ll explain how to mark cutting lines to create the original PotHole Bunny form. But the limit is really  only what you can imagine from the bottle. Though some advice is to not let any sections get too thin - remember this will be hit by fast  moving metal.  The bottle has 5 lobes or feet at its base. The best bunny form uses three of these, with the middle one being its ‘nose’. There are raised sections running the length of the body of the bottle. You want to make ears in approximately the positions of the ones on  either side of the one above the ‘nose’. Make the ears about the lheight of half the bottle’s length. It’s tempting to use the full height of the 2  litre bottle and create long ears. Unless it’s going into a very deep pothole, this will make the bunny too tall and drivers will not be prepared to  pass over it.    Cut the silhouette from the bottle  Follow the lines you’ve drawn and excise the bunny from the bottle. Scissors are most accurate. A saw may be needed if you’re cutting the thicker part of the bottle’s base.  ‘Paint’ the rear surface of the bunny form  Apply the white silicone to the back surface of the silhouette everywhere except the base where glue will need to bond directly to the plastic of  the bottle. Or accentuate the bunny shape by applying artistic license to where the white is painted in. Optional steps - the surface area to be coated can be abraded (sand paper) to allow the silicone to bond well                      - draw eyes on the inside surface before coating it in white.  Drill holes for attachment  Drill holes in whichever part of the form will attach to the pothole. These are for glue to pass through and ‘tie’ down the bunny. Usually three  holes (approximately four millimeter diameter) in each contact point or ‘foot’ of the bottle’s base.  Installation Choose a location. The best potholes to mark are ones at the very edges of a lane (sides or centres of the road). A bunny in the very middle  of a lane might cause some drivers to slow greatly, or detour completely around it and into other lanes. The best locations are also places  where drivers will have plenty of time to see and correct for the marker.  Choose a quiet time to install the bunny, since you’ll be working in the roadway and because the glue will need at least a few minutes to set  before a car could drive over the pothole without dislodging your work. The least traffic is usually at night, so wear highly visible clothing so  that if there is any traffic the drivers can see you.   Gluing to the road is really the only option for fixing in place. And since the form needs to be fixed in place quickly (so that vehicles don’t  disturb it before glue sets) the best option is to use fast setting epoxy glue. Ensure that the pothole isn’t wet. Installation really isn’t a project  for a rainy day. Slight damp could be heated off with a portable torch, but that’s a lot of effort for this simple project.    - Test fit the bunny in place.    - Apply glue to the areas where the base contacts the road, and to the base, then place the bunny in position.  - Add more glue at the holes so that the glue is continuous from between the road and the base, through the holes in the base, and either  pooling above the holes or ideally bonding to something (such as pebbles found lying around) in the cup of the base. This way the glue can  ‘tie’ the form down instead of simply relying on adhesion between flat surfaces.  It’s really only the ‘back’ of the pothole that takes a beating from wheels, so place the bunny as far froward in the hole as possible without  hiding the ‘head’ to oncoming motorists, and it won’t get destroyed as quickly as otherwise.   You can either stick around until the glue has set, or come back to check that the bunny is still in place.   
Make and install PotHole Bunny road hole warning markers