Kids could make a raft or float! :) A different way of recycling plastic bottles. Here, a boat is made entirely of plastic wrapped bottles drawn into the shape of a boat. Even a front and rear seat have been made entirely of wrapped bottles.
Haha this would be funny as a gift - DIY Bacon Candle - have the smell of bacon any time. (Instead of drilling a hole for a wick, tape a wick in the center of the jar before pouring the bacon grease in.