Self-balancing bat, print in place and optionally glue the teeth on (as far forward as possible); have also uploaded a single tooth if you would like the bat to spin. Also included a version with a hole to hang the bat, should balance on the knot.

Fold the wings until the bat flies level.

Prints better larger, 150-200%.

Suggested print settings: 

• Arachne wall generator
• Aligned rectilinear top surface pattern 
• 100% infill for appropriate weight