>>>An inexpensive and surprisingly durable alternative is the 20 oz sports drink bottles <<<<br><br>The pull to[p busted on one of my son's bottles last year. So I bought one of those sport's bottles, and it work quite well. Until Mom tossed it into the recyling bin when he left it out on the counter! I bought a Colman bottle to replace it for $1. I'd tell your kids to decorate or mark up their sports bottles so moms don't throw away their "valuable" camping equipment!<br><br>