I looked around at a few people's suggestions on how to create cushions, like this one from Hands on Learning. But their cushions fit down into the crates. I couldn't do that because I am using hanging folders and the cushion might crush those pesky little white handles like crazy.
I needed something to go on top. Something that would also be sturdy for some of my larger Fourth Graders. So I measured the width and length of the outside lip of the crate.
It was 14" x 16.5".
Then I went to Home Depot and bought a 4x2' piece of particle board that was only like $4. I had them cut the two pieces I would need from that for my project. I had them cut it slightly larger to overlap the crate at 15" x 18".
When I got home I looked at the sharp edges of the boards and my Teacher Brain went to, "Uh-Oh. Someone's going to get hurt." I took a small bucket and traced rounded edges on each of the corners.
I broke out the jigsaw tool that has been gathering dust in the far reaches of my garage and cut those edges down. It was awesome.
Then I some 1' poly foam I bought at Jo-Ann's (hint** Look at the remnants first, they might just be perfect for you.) and took out the Staple Gun to secure the corners first.
Once again I just started stapling around. This time I started on the longer sides, like present wrapping.
So, I needed to remove that middle section of fabric which required a whole lot more stapling.
Here's what it looked like when I flipped it over. Great, right????
Now, here is the finished product on top of the stools. LOVE!