The only 10th stuff we have done to date is the 10 shirt that came with the Imagineering Donations.

That being said, if you are attending the Illuminations meet, I can pretty safely say you'll be getting a shirt, along with other ICOT swag.

We may make an ICOT 10 shirt available for purchase soon. Depends on how things work out before the big meet, but almost certainly after the festivities are over in October.