Mini Crossbow with Marshmallow Ammo for diablo 3 costume

My stepson wants to go Halloweening as a Diablo 3 demon hunter, a character that welds 2 hand crossbows.

I'm a designer new to 3D printing and Autodesk Fusion 360, with a lovely revolution infinity 3d fdm printer.

A match made in heaven...??

So in the video the red one was version 1, the whitish ones are version 2, and the black ones (not assembled) are version 3. I might do one more version as the holes I put in the handles are not printing great for me (mostly because I'm to