I rigged something together this morning that I am hoping will keep the brooder dryer for a little longer than 3 minutes! I took an old plastic takeaway carton and cut two holes in the lid. I then glued it into a larger more rigid plastic box that has two holes poked into each side of the back. I threaded some string through the holes and this ties the whole thing to the side of the brooder. Pop the lid on the smaller box and fill with water. It is deep enough for them to immerse their bills in but they can't jump in it or tip it over (hopefully!) and the bigger box catches most of the drips from their bills. I've only just started using it so I'll keep you updated on whether it works or not.