I was in the Dollar Tree the other day and had brilliant idea. I had been looking at foam craft pieces that you use pins on to block your crochet/knit blocks. They are pretty pricey for you square. I found these in the kids education items at Dollar Tree. This block is approx. 12 inches square perfect for blocking.
I decided to duct tape the backs, so the pieces would not come apart.
Here is two of squares set up on the foam. The only thing I am missing is grid lines. I have been trying to figure out the fastest way to do this. I will add an update if I find a way that makes it still under $5 a block.
I tacked the block down with T pins, then used a spray bottle with water in it lightly made it damp. The block held it’s shape perfectly.