I am thinking about making a flag buoy out of inner tube. But maybe there is something on the market already made? I need a fishnet in the middle for all the goodies, flag holder and some kind of outer skin to protect from punctures and give it a colour. But then, maybe something like ultra small inflatable boat? Canot find anything on the market, all I see is bouys based on 15" inner tube. Share your visdom please.