This is my take at making a classic Clacker Toy. I designed it to not require any external parts, the assembly only requires attaching the weights at the end with a piece of cut filament. I found it fun to play with and decided to upload it!

I may consider making another version with metal balls at the ends to have a more elastic bounce, but this one is easy to print, takes very little filament, and is fun to play with!

I found it most fun to spin and try to get a steak of the weights bouncing!

Here's how to assemble: