just made me a couple bait holders for gills and minnows. the first one is made from a cooler. much to big to carry down the banks and such but for the truck and garage it should work great. took a $6 bubble box and some tubing and got a $2 bobble stone and used marine adheasive to secure it to bottom. also attached a knife to it for easy access. drilled a whole through the side for the tubing and used the marine sealent/ adh to seal it. the big stone puts out more air than the small round one that came with the box.