A few tips in response to some questions I've received.
A cheap NON-automatic automobile battery charger 12 volt, 10 amps should work fine.
An automatic automobile battery charger would read a dead short and turn itself off.
One thing I learned the hard way is that the positive side needs to be connected to the lower and the negative side to the Q-Tip. I got it backward once and it ate away the clip holding the Q-Tip, and barely marked the work piece (in this case just a piece of scrap).
If the bare clip touches bare metal there will be sparks, tape off the surrounding area.
I recommend testing any setup on a piece of scrap before trying it on a lower.
Example of text;
Max is 10 maybe 12 letters/numbers per line.
If you want room for artwork the Manufacture and city should be moved to above the hammer pin/selector area.