A friend needed 100+ buttons for a cosplay coat. Buying them proved to be too expensive so she asked me if I could make some. Easy challenge accepted. This model consists of a dome shaped button face and a loop/peg that glues into the back of the button. The files include the button shape and two versions of the peg with the loop in it. The “Loose” version of the peg is easier to push into the hole in the back of the button. 

I printed these out of a matte finished PLA that worked very well for the purpose.