Lixit makes glass waterbottles that are awesome, and don't leak. They are meant for parrots, but we use them for fuzzies. The only way they would "leak" is if a ferret placed an object against the ball. These are NOT cheap, and cost $20 to $25 bucks, but you honestly use the bottle for life after you buy it. I can't say the same for many smaller bottles. I was lucky and got one for $1 on clearance at Petsmart when they stopped carrying them. I would have had two, but an employee saw me and asked if she could buy the other one. What was I going to say? They are sold on Amazon and I highly recommend them. And also recommend two people for installing the bracket so you don't go insane with frustration. http://www.amazon.com/dp/B0002Z160G Laryssa [Posted in FML 6502]