Convert your swim ring into a beverage center/cooler.

I was cleaning up a construction site one day and I found this piece of filter fabric amongst the crud I was hauling away and it suddenly hit me, Why don't I make my own drink holder that uses the water it's in to keep my drinks cold? That's what this instructable is about. I designed this to use the body of water that it's in to keep unopened drinks cool and at reach.  I recommend the beverage barge after you open a drink. www.instructables.com/id/The-Beverage-Barge-MK-2/  There are many variations from my design ranging from the ring itself to the rope to the bottom of the ring so you can build it how ever you see fit.     

Step 1 Tools and Materials

 Tools
Marker: to mark your cut. 
Ice pick,nail, awl, letter opener: To punch a clean hole through the tarp.
scissors: to cut your tarp.
Stove: To melt the rope so it won't unravel. Only do this with synthetic rope as natural ropes will burn.  

Materials
Swim ring: The swim ring can be whatever you want it to be. I just chose the coolest one ever devised by man.
Tarp. Mine is filter cloth that is synthetic based. A blue tarp would work but you might have to poke holes in it so water can get in, or not it's really up to you.
Rope. Use a synthetic rope as a natural fiber rope will rot from the contact with the water.
Duct tape. My filter cloth is actually plastic strips woven together so I used tape to prevent it from unraveling instead of the melting technique.