I made this marker storage from an insert from a box of blood collection tubes from my clinic. Just had to find a box that was deep enough to hold the markers and the right size to hold the insert. Then I covered it with leopard wrapping paper to make it pretty

I made two, which will be enough to fit all the spectrum noir markers, once I get them (each holds 100). Best of all, it didn't cost me anything!
So, if any of you know anyone that works in a hospital or doctor's office, you might be able to get your hands on a couple of these!