For US makers — turn a length of 1.5" Schedule 40 PVC from any hardware store into a real didgeridoo. Snap-fits the US imperial standard (48.26mm OD / 40.89mm ID), so you don't need to source metric pipe. Bore size sits between the 40mm and 50mm metric versions, with the same comfortable 30 mm mouth diameter. No glue, no tools. Designed with player research in mind: • Printed in PETG — a tough, heat-resistant plastic that won't crack if dropped or soften in a hot car (much more durable than the brittle PLA used in most cheap 3D prints) • 30 mm round mouth opening — the universal didgeridoo comfort size • Asymmetric rim — sharp inner edge so your lips can vibrate freely, soft rounded outer edge for face comfort during long sessions • Internal acoustic taper from cup to bore — eliminates the 1–2 kHz "plasticky" peak that ruins cheap PVC didgeridoos • Tuned per UNSW didgeridoo physics research Fits: 1.5" Schedule 40 PVC (48.26mm OD / 40.89mm ID, US plumbing standard). Open source under CC BY-NC 4.0 — designed by Gilad Nahor. Source and feedback on GitHub: github.com/giladnahor/PVCdidge — open an issue if you have ideas, pipe-size requests, or print photos to share.