I'm right!!! Err, what'd I say? Water in a clear tank wouldn't be blue But blue Kool-Aid would, and there's nothing better for keeping Hitler's brain alive inside a jar! But yeah, the whole chamfering thing doesn't work here. Unless that's goo with a very high surface tension. Just use a regular cylinder and break the top off (and just delete the bottom) for the water. I'd make it have several levels of cap if you want to make sploshing morphs.