Key holder designed to be printed in TPU. Strong enough to hold keys securely, soft enough to not poke your leg much from in a pocket.

Print the pin laying flat for strength. Assemble by putting the pin through the side of the key holder body with the rectangle opening (may require trimming the edges of the end of the pin to fit) and putting your keys on the pin. With the pin fully in place, use a small piece of filament cut to length and inserted through the small top-to-bottom hole in the side of the key holder body and through the end of the pin to hold it in place. I haven't had any issues with the filament piece falling out.