Name Jacob and Jakob both made into a pattern for stained glass, or glass fusing or glass painting.

Pdf downloadable file comes letter size but the black and white pages can be enlarged by any quick print store to your desired width, or by programs equipped to work with vector formats. 

Two variations here, one with the K in front of the letter O and one with the K in back of the letter O, and a different cut for the outside ring of the letter O.