Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4945472.

Blowpipe darts i have an old blowpipe that i now let the children use, guess what? the darts "disappeared" in a very short while....

here we have some replacements!

[EDIT] following the presentation @TuxTage21 i cleaned up the code and added some twist to the dart-fins [EDIT] translated the variables for the customizer into english, left only one dart to be customized, but i am sorry, the thingieverse customizer doesn't want to render it... since i don't know why... you will still have to download it and launch the regular openscad customizer or edit the code directly... [EDIT] added a phhoto with the new twisted fins, not sure it does a better job, but well at 10m the dart is solidly and in a straight manner in the target!