Having trouble finding charm packs with only a few patterns.

I'm new to quilting and perhaps I'm not searching for the right things. I want to start with a pre-cut package (charm pack or jelly roll), but I really only want 2-3 prints and the rest a solid color. Is there a way to specify this in my searches? I can only find charm packs that include 15-20 patterns.

Or are there any sites that will custom-cut packs based on a few patterns/solids of your choice?