Jim -- I have used the laser engravers but I did the search and put together some graphics that they used. They have the capability of translating a digital file into burn marks on the pen, but are limited by copyrights on art work provide to them to openly share it as public domain. I do not intend to put my designs into the public domain.
I have seen clip art with dancing shoes -- from ballet to irish clogs.
You put together some simple art work and they will make it happen -- that is where the serious time and effort is at -- getting the art work together, and I doubt you want to pay the costs charged in the commercial sector for that work (think thousands of dollars).
But you might get lucky trolling -- it is not a sure bet.