Cube Trays for "Century: Spice Road"

I love the game Century: Spice Road. Although well made, there are a few things that bug me about the game. In the original game, you place your resources (cubes) onto flat cards. I don't like this for a few different reasons. First, to reoganize them isn't quick and easy. The other thing I dislike is that you need to count to figure out if you have too many cubes.

I've made some trays for the cubes to sit in. They should fit exactly 10 cubes (2 extra mm for imperfect cubes). They're easy to shuffle around.