A two-piece, plastic, container particularly attractive for serving Margarita drinks and other well-known cocktails. A receptacle portion includes double flared side walls with a two-stage tapered plug on the bottom. The upper-stage of the plug secures the receptacle in a base portion and the lower stage...http://www.google.de/patents/US5996825?utm_source=gb-gplus-sharePatent US5996825 - Bi-nestable container for consumables
