Groo Watch: Sergio Aragones Funnies #6

I only spotted two Groo appearances/references in this issue. The first is on the cover, as our man is one of the cascade of characters tumbling out of Santa's bag:

 

And then in the very first panel of the issue, Sergio is wearing a "Did I err?" shirt:



Man, I hope more cameos sneak in to future issues, or I'm going to be positively salivating over Groo vs. Conan...