from a shopper...  
 
"... a playful Happy Birthday Gay Son and a Drag Queen Birthday Card"
 
The shopper will find these cards here:
Via this search link:
http://www.greetingcarduniverse.com/shopping/cb.asp?keyword=drag+queen+birthday
 
These should go in:
Birthday >> Gay / Lesbian >> Other
http://www.greetingcarduniverse.com/Birthday-Gay+Lesbian-Other
 
Be sure to use these keywords in the Drag Queen cards: drag queen birthday
 
Birthday >> Gay / Lesbian >> For Son:
http://www.greetingcarduniverse.com/Birthday-Gay+Lesbian-For+Son
 
To expedite the review of these cards please check "Fast Track Review" on the Card Image Details page when you create your card.

I'll try and give this one a shot too.. working on some custom cards this weekend.. so hope I can create one before the end of weekend- hope that it will be in time for when the customer needs it. I have had a few gay/and also drag queen older friends in the past that were fantastic fun people!! I hope I can be inspired by my experiences to make a great card for this one.