Remixed from https://www.thingiverse.com/thing:139461

I made the handle a little longer for added leverage. I also made the penny slot a little deeper and made the mouth of the penny slot slightly wider to assist in assembly.

You can use a thin piece of metal (a spade bit was the first thing I had handy) and a vise to easily set the penny in place.

The file attached has the logo removed, but you can easily add one in Tinkercad. The logo in
the one pictured is 0.8mm above the surface. Just be careful not to sink it into the penny slot.