Homemade Plectrum Punch

[brianhw]

Hi, having recently got into 3-string cigar box guitars, I was finding myself losing grip on the plectrum quite often so I made up this little rough and ready punch to make slightly larger plectrums, which my old hands would be able to grip a bit better, and so it turned out.
This simple idea could maybe be used for other shapes when punching thin plastic like credit cards, etc
.
Here it is:-