Hi Sean, I would love to have the file to have a look if possible. Do you design and draw it yourself? I have found a design on Etsy that also comes with the plunger.
However it is from the US and the delivery fee cost me as much as the product itself. I am wondering if anyone here could help to design for a file so I could get it printed from a 3D print shop. I am willing to pay for a reasonably price if anyone can print it for me too!