Summary

Dump boxes of 'em! They will hopefully fall point-down due to a marble in the front. Ow.

Use at your own discretion. These will actually hurt.

Supports recommended for printing.

You'll need a 0.5 in (12.5 mm) diameter metal marble for each flechette. https://www.amazon.com/Pieces-Labyrinth-Replacement-Rust-Proof-Marble/dp/B08MBW5LRJ/ref=sr_1_5?dib=eyJ2IjoiMSJ9.VsuvovSTciJspYjBy8LvEHVaMMlYAaDhLObNrg137dMDQzmwcywU0MG4sYojFdk1zmnlAewSqnwYv2_hS9bT9wNjv8pyKu4FMRHeEcNL5zwMFwjK9o3ZB164ucI35YByr8MuaentZcMT-dwT4LAOMVHqel56TfaPZEMwpqZVCBVq882DWP0Oc3fPuNLAFPvku7bthFmo3HvUBfUUeiz5auNpMVogCF1IpHvkPawKcf0r3vGVoepOjaOD5w6g7GOrk4AvxkJQOJywtRR_J5_Q0lLov7WmKC25fTUwgprECeY.Cbuxhs4rX0X1CVhNaiabVf0KmtvZxokWSIc7mGONHcI&dib_tag=se&keywords=q+ba+maze+marbles&qid=1721755441&sr=8-5

Good choice for marbles ^

Put the marble in the flechette. After you've placed the marble, screw the point on.