The file 'Nerf Missile Wistle 3D Printer Model' is (stl) file type, size is 21.7KB.
I feel like this should already be a thing with literally every other (non rival) nerf dart has a whistle version and a missile would be so cool if it whistled. Also I have Been working on something for a while and it is the 3rd version of the nerf hopper.https://www.thingiverse.com/thing:6657930
Nerf_howler_missle.stl | 77.1KB |