About this 3D model

I picked up an old bowl-back mandolin, but the front strap button had been lost at some point in its history, which is particularly problematic with such a round instrument. Finally, I did something about it! I probably could have replaced the button, but instead I designed this strap hook to fit under the strings on the headstock. Now, important point - we're talking about hanging your expensive mandolin off some printed plastic, so consider the welfare of your instrument!