Now that you've mastered the fine art of PVC bottle rockets you are probably wondering "what now?" How about homemade PVC bagpipes? A bag pipe solo would certainly add a unique atmosphere to your bottle rocket launch event or a company picnic. The website also include instructions for other homemade musical instruments: kalimbas, banjos, musical saws (does that count?), hurdy gurdy, doodle-bass, didjeridu, fife, dulcimer, and others.