I was lucky to inherit a spice rack tower set on a lazy susan from my mom. I can keep my buttons in the clear containers, and they nest in the tower which spins so I can see all the buttons sorted by color or type. If I like, I can remove the spice rack plastic cap or keep it on to keep little hands from using it.
Sounds like there are lots of ideas out there. This is the great thing about this board....lots of help when you need it.