To make this, I used an old margarine container and my kitchen scissors. And thin plastic container with a lid would work, and it would probably be nice to have different shapes and sizes for different purposes.
I like the way the curved slits on the Munchkin Snack Catcher fit together better than those I've seen with straight across slits, so I imitated that shape and cut my own slits with a similar curve.
Once I had added the o's cereal, I passed it off to Violet for some product testing. She discovered that this larger container could fit both her hands, and like she does with her Munchkin Snack Catcher, she promptly pulled out a handful for the dog before feeding herself.
She didn't take off the lid though, so it served it's purpose well. I have some grapes and blueberries in the refrigerator, and tomorrow it will go to good use because I can give her berries that way without ending up with purple feet from the mess of giving her an open container (which I did this morning- call me Smurfette).