Banana Knights Shoulder Pad
Well, if this isn't the most insane thing I've ever been asked to try...
A first attempt at a Chapter badge for the Banana Knights by BigMrTong here on Thingiverse, whose work you can find here: https://www.thingiverse.com/BigMrTong/about
The best way to get a visible banana that wasn't a simple flat shape seemed to be to emboss the outline so as to get more detail; if a flat shape would look better it won't take much to add a second pad for people to print what they'd like.
Designed for resin prints, but should work alright with FDM. FDM results will probably be best if the pad is laid 'flat' on the bed rather than with the design upright as it orients naturally, but have a play and see how it looks.