Thanks so much to every one of you for taking the time to help with this. Think I'll go ahead and try Block Head Stamps since CrimsonMama has had good luck with them. When I checked them previously they had about 5 dozen different colors in just the pigment ink refills. (I didn't check their chalk inks.) Out of all those I found about 20 colors I actually use. Think I'll get about 6 for now and wait on the others. It will be a struggle to avoid looking at their stamps too though!