The darts holder is very handy, holding two sets of darts, with space for spare flights, shafts and a sharpener. There are two versions: wall mount and not. The wall mount version prints-in-place with a small plate to attach to the wall. The basic version can be attached with double stick tape, or just rely on gravity.
Take a look at the 4 set version to see the wallmount in action: https://makerworld.com/en/models/41397
Nothing special for printing …
Designed in OpenSCAD.