One of my fishing float designs, easy to print in two parts and glued with CA gel glue.

Can be scaled to your liking.

You can epoxy some shot in the bottom to make it preloaded or use as is with more split shot on the line.

For cleanest results sand with 160-400-800 grit.

I use Daler Rowney System 3 Acrylics for the details and seal with Sparvar 1301 clearcoat.