Fix a Toy Arrow
FleetingThis should be the easiest to create.
7mm of diameter
https://ipfs.konubinix.eu/p/bafkreih4k2q7pqx7ivlm6dfugehiu57saqahlozjtzpwurxp655vbsf3dm?outfile.stl
Curiously, the minimum thickness of the wall had to be 1.3mm, while the nozzle is of size 0.6mm.