The answer is: absolutely no problems at all.
When you receive your rewards for your Patreon support, you can do whatever you please with them. Read ’em, gift ’em, sell ’em, use them as a coaster, etc. They belong to you.
So, to anyone who was concerned there might be hard feelings because you sold something you received via your Patreon pledge, you have absolutely nothing to worry about.
Thanks again for your continuing support and enthusiasm! More news soon!