Here's a basic design for a custom pickleball paddle and handle. I prefer to cut the paddle out of 3/8" ply and print the handle in a high-temp plastic like PLA+, PETG, or ABS.

The handle is secured with three small screws. It can be glued for additional stiffness, but it is not necessary and will ruin repairability.

The handle's base allows for a small lanyard to be threaded through, this is easier before attaching the paddle, but is doable after the fact


BOM:
3/8" Ply: https://amzn.to/3PE9aCg
#4 Plastic screws: https://amzn.to/3sLxEk3
Paracord Lanyard: https://amzn.to/3sRVDOG
Finishing Wax: https://amzn.to/45XVzM8
PETG Filament: https://amzn.to/3PDOaf3
Grip Wrap: https://amzn.to/3PjJx8H