MiniArrow Optional Electronic Pod
Here's an attempt of the "Optional" Electronics Pod for the MiniArrow from Flitetest. There's a Mighty Mini Power Pod out there which fits right into this. I made it stick out about 2mm but can be cut to fit flush.
There's a section of support material that I forgot to remove from the drawing where the POD fits but it pops right out (don't ask why). You'll need to print this with support material. Sorry I'm new to drawing, printing and Thingiverse. It's not the best. Seemed to get messed up after going back and making changes to many times.