We got a new scoop for our kitty litter. It was huge and we had no place to put it. I was inspired by a toilet brush holder that would hinge open and closed as you took the brush out.
I made this with the same kind of mechanism, but the right size and shape for our scoop. You will probably want to resize this for whatever scoop you want to hide. Feel free to remix it, I have included the design models.
The 2 inside halves glue together and you glue two pins from the inside. The complete inside piece will rest in the outside piece and you tilt the inside piece to open it.
It should work just by grabbing the handle of the scoop and pulling it out. It will stay open until you put the scoop back in.