STL FILE - Gas Mask Dildo

I charge a nominal fee for the STL files and instructions for my more complicated designs, including this one. This is a downloadable set of STL files that you can print on a 3D printer at home; it is not a physical product. So what is it? Well, you attach it to the end of a gas mask hose, with the other end of the hose attached to your favourite gas mask. It's insertable, and the channels along its edge let air flow as you thrust, changing the breathing restriction. This allows for some very kinky aroma play sessions. Breath play is edge play, so never attempt it on your own. I print mine in ABS, but you can use PLA or PETG instead. NOTE: You are purchasing a zip file containing two STL files and a PDF containing the instructions and suggested print settings for creating this gas mask dildo. You will need a gas mask hose and gas mask to use it, and these are not included with this product. STL Files: Short-Boy.stl – The short version of this gas mask dildo. Tall-Boy.stl – The longer version of this gas mask dildo. I am not releasing the copyright to this design or the files purchased; you may not distribute them, and you can only make PERSONAL prints.