I have a set of 4 small sanding blocks that I use when I make boxes. They tend to get scattered around without a particular spot to live in, so I made a fancy box.
The box has a continuous fractal design on both top and bottom and holds the 4 blocks.
There is also a false bottom beneath the sanding blocks:
I can lift this out and get to the pre-cut sandpaper grits resting below.
Now they have a place to sleep and hopefully won’t get lost so darn often.