I used to think they had to match. Now I just make sure it has a back. Many have tone on tone white or off-white. (I just went through all of the pictures and nearly every one is white except for a few with fall themes.)
A while ago I made a blue Boxed Squares and did not have enough of any one piece, so I put three sections together. It came out quite well.
Last edited by Boston1954; 03-22-2019 at 12:02 PM.