What might work better is to print up some Bitcoin bank notes using BitAddress:
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https://www.bitaddress.orgClick Paper Wallet, then mark the checkbox for Art.
This is the result:

Then you can fund the bills as you sell them. Include instructions on how to redeem.
I don't see on the website where you check a box for the artwork.
http://bitnote.org/Just put it on my server very quickly. Maybe I'll feel like to pay 2/month for an extra IP so I can get a SSL cert without the warning.
You can use SSL, but it will warn you that it's from another domain and signed by cacert.org. It's not insecure per se, but it gives you the warning.