to "Polka will never die!" I always wondered if the cool shirts Jim wears to Q & A's were his original ideas oder.....could one of those be used...like the Latin one which supposedly says "A long time ago, in a galaxy far far away"?  Those are cool too.  Glad this all came up when I'm re-listening to Dead Beat.
I'd like to see a shirt with Toot Toot and his gear...and a slice of pizza maybe with the Za Lord mentioned somehow.  Oh what a fine thing it would be to be egregiously clever.  Thanks for this cool idea.