I created this so that it can be printed and hung from a helium balloon and then moved with a small fan. Ideally the small fan should propel the blimp forward. Update, I just noticed I did not upload the version which has the holes for the rods to insert, I uploaded the right files now. Sorry for the mistake.I split the blimp in two so that it can be printed without much support. The rod inserts into the hole and then is glued to the propeller This is a work in progress and my 3D printer does not arrive for another week so it hasn't been tested. Feel free to try it and message me with tips on how to improve it. Thank you.