Block print created by arranging LEGO tiles on a Lego baseplate, then inking and printing them just like you would any block print! My printed signature was done by hand-engraving a LEGO tile.
 
 
6 x 6 inch image on 8 x 10 inch Legion Thai Kozo paper. My LEGO prints are not limited-edition, given that the printed images themselves are basically instructions on how to make your own, but each one is hand-signed and dated in pencil.