3.5" jumpfrog lure. You can use treble hook or frog (double) hook. There's a rattle chamber at the belly for a ball bearing.

Picture was taken from eBay and the lure was base on that.

12/27/2024 Update: Added JumpFrogRev3.stl file Rounded the flat to .100" and made the chamber bigger. This topwater lure is mainly use in Southeast Asia for snakehead. Fast retrieve so the lure jump/skip/wake. For bass, your mileage may vary.
Post pic of your catches!

-Thanks