In this picture the 5 in a star are the 3D printed copies of the other one that's the original. This is another project you know I did not come pu with myself. This is a piece for an automatic weaving loom. A very little piece. But being so little they're easy to lose.
This is the loom.
And on the bottom here is where those arrow pegs are used.
The part took a little clever desiginging to make it FFF friendly (FFFriendly? Can that be a thing now?) but it remains functional.
On the off chance that you need these pegs you can download it on YouMagine.