I got mail sent to me the other day, c/o the Anthrocon mailing address:
The enclosed letter reads:
Please do not open the enclosed package until Anthrocon.
Dr. Sodic non Grok
"Dr. Sodic non Grok" is an anagram of "Gordon R. Dickson", the original author of the books that featured the Dorsai.
I've no idea who this person is, but they've been making Dorsai Trading Cards for some years now. First there was Series A, then Series 1, and now Series 2.
If you want to see the trading cards, find a Dorsai Irregular at Anthrocon.