I inserted a square in XCS and made it into a rectangle. Then copy and pasted it several times till i had 1 row. Then copied that row and pasted it underneath the first row. Did the same with the other rows. Then i grouped all the rows together and set the cut settings. I also made the group of rows smaller, so it would fit in a 12x12 inch sheet. Then i started the P2 and let it cut. I did the same with all the colors. I googled for a cross stich pattern and this one popped up, which i really liked (specially the colors) There are many of cross stich patterns you can play with and chose your own colors. When all cut, i took a piece of 1/4 inch wood and started laying out all the pieces and then glued them on the wood, then framed it.
Cutting mosaic pieces might be tedious, but the good thing about cutting them yourself, is that when you are short of pieces,
you don't have to run to the store and buy them. You can just cut more and more :-)