Xiaomi Mija Mi Sphere Selfie Stick Tripod Adapter

This adapter lets you screw the stock tripod into the official Xiaomi selfie stick! All you need to attach the two halves together is a 20mm M4 bolt.

Make sure you print with enough walls so that the lower part is solid; the curved upper doesn't need much extra strength.

Update: Added models for 'standard' tripod threads (1/4" and 3/8") with a flat face on the bottom.