This is a space shuttle blow dart - Give a hard blow to see the shuttle fly.
There needs to be a good fit between the shuttle and the pipe. At first it may be a bit tight - simply put on and take off the shuttle a few times to get rid of any resistances. You don't want to do this too much as the shuttle wont fly as far if its too loose.
It doesnt fly very far - a couple of metres with a hard blow, but its good fun sneaking up on people!
Print in the orientation shown in the photos - no supports needed, 0.2mm layer heights. I added a colour change to get a more space shuttley look
The author marked this model as their own original creation.