I made my own fat quarter storage bins with 1 trifold foam core board. I cut the 12" sides through the back paper layer and foam leaving the front "paper" in tact, making 2- 6" wide folding pieces, then cut 6" over from the fold of the center through completely. That left me 3 sides, folded up to make a box. Repeat on the other side to make a 2nd one. I used the left over 12" from the center piece, cut into 6 x 6" squares to make the top & bottom ends, and a couple "Shelves". Hot melt glued them in place and I was pleasantly surprised how strong they actually are!