This is a model for a shaker egg filled with BB's by pausing the print ¾ of the way through the print. I created this primarily to test that I could pause the print and fill it, then continue to the print. It's a single wall print that seems pretty strong.

Printing with Bambu Labs basic PLA. Would likely be stronger with other materials.

Notes:

I turned on supports only for the base, since the contact area with the plate is so tiny, but be sure NOT to enable supports for the internal structure,

I paused it at layer 243, and added 50 grams of copper BB's. You could also use beads for a softer sound.