blow gun
thingiverse
This invention originated with Tinkercad. Alter its structure here: https://www.tinkercad.com/things/zv2eXm1qUwZ
Download Model from thingiverse
With this file you will be able to print blow gun with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on blow gun.