i plan on making a pattern for the optical illusion quilt i'm currently working on.
its a small illusion and you can keep adding units to make it bigger if people want a big quilt.
the one i'm making is 4 panels in the center and the 1/4 of the design in each corner to square it off.
i plan on making the last panel at the end of february and i'll make a detailed tute on how to do it.
its really not hard at all - if you can make a 4 patch you can make an optical illusion.