When I weigh anything solid on my scale, I use a coffee filter to put the items in. Sitting up, it's a great cup. Turned over and spread out flat, it makes a good flat surface cover too. You get a gazillion of them in one bag and they are inexpensive. And they contain less paper than regular paper towels and napkins! If you empty out the crumbs, you can reuse the filter later to brew your coffee.
Don't try this with liquids!!