What gets a dinner party going better than watching your guests struggle over a little brainteaser? Made from simple, lightweight pieces of wood, beads, and rope, Don't Break the Bottle is a puzzle/contraption that secures to the top of any standard wine bottle, keeping the cork inaccessible until your thirsty friends figure it out how to open it. If you're feeling extra sinister, you could even extend the puzzle's frustration to herb vinegar, olive oil, or soda bottles. And if you've been looking for a way to ruin the momentum of an anniversary dinner, look no further. Still, there's no greater motivator than desperation, and along with that, no sweeter taste than a labored victory (even if you had to break it open with a hammer and drink the wine from a rag). Retailing at around $38 with around $4 for shipping, I'll leave it to you to decide if it's worth the novelty of the struggle.