Baby's First Mjolnir (Rattle) - safer and no-glue version

thingiverse

I wanted to 3D print Mjolnir as a gift for my friend's newborn, but the hole that served as the glued hilt didn't seem secure enough. To address this issue, I decided to seal the opening - you can add marbles or other small objects that create noise during printing, and they will be safely trapped by the top layers of the print. The objects cannot escape unless the nozzle is severely damaged, which should be extremely difficult for a small child to accomplish. Next, I added screw threads to ensure a tight fit without needing any glue. This modification has proven to be quite effective in keeping the object securely in place.