Oh,um to be honest I wasn't expecting a reply. My funds have flown the coop since I posted due to the holiday season. But I would love to know how much you'd want for a shirt with just the characters. I would be interested in picking it sometime in the new year.
As an aside have you considered using a service like redbubble.com to turn your art into merch? I don't know how the behind the scenes on those service work but what I've seen of your gallery is the kind of neat off beat style that people are in love with right now. Anyways happy holidays and thank you for contacting me ^-^