I use basic 4-patch & alternate with sq same size. You can make these with theme, 2 colors, or just every patch different or themed fabric scraps. Make sure to use nonslippery material on back. some poly blends for example ok on front. Can be tied or quilted. Have made lots of them. Even from jeans & put flannel on back no batting. make sure everything is washed & can stand HOT water. & don't forget to make guy themes. Depened on fabric I use 4'-6" for 4-patch blocke. I try to fit size to 44" backing or width of fabric. which is wide enough, especiallly if they are wheel chair bound. Have fun!!