Pantographs are usually devices for copying or scaling drawings, but in this case Vermont American’s pantograph allows you to carve drawings into wood with your router. The router simply follows the path you trace, assuming you can accurately trace with a 2hp, 10lb machine fighting back.
The pantograph’s universal mount works with most 6″ base routers. Besides copying a drawing with a 1:1 ratio, the pantograph also has three other reduction ratios. It comes with templates for both Old English and modern lettering.
Google Products lists Vermont American’s pantograph for as low as $20, but chances are you’ll pay at least $30 before shipping.