So after purchasing the spice rack, I pretty much replaced the majority of the containers with my own spices. The existing labels were plain black labels. I decided to snaz them up with my own designs. I think it came out pretty nice.
The top of the spice containers were a little larger than 1.5 inches in diameter. I created 1.5 inch round labels. They didn't have that size at Office Depot, so I bought the 3x5 labels and created the 1.5 round sizes on that. 4 on each label, 16 total.