The instructions that came with mine mentioned to use a couple of small pieces of clear scotch tape to keep it together. Works fine. The only thing I don't especially like about it is it's too small. Same thing scaled up to a 20 oz. or 32 oz. beer mug for vanishing beer effect would have a greater visibility. Or to use it as traditional milk pitcher scaled up to 64 oz - 72 oz size would make it better.