Amazon.com: True Genius - Grecian Glass Bottle Brainteaser Puzzle- Disassembly Puzzle, Brain Teaser, Brain Teaser for Adults, Gifts for Men, Take Everything Out and Then Put Back Together : Toys & Games
Jerry's Mechanical Puzzle & Brain Teaser Collection: Smiley In A Bottle
The Ring Bottle Puzzle, an impossible object designed by Wil Strijbos.