If you're going to do something, do it right

So Mark's 40th birthday is at the end of the month and I finally managed to get him to tell me what he wants to do for it.  OK, not that he actually TOLD me, more that my random string of suggestions finally hit home with, "oh for God's sake, how about Bowling?"  So we're going bowling.  Now I actually have to get a guest list out of him.

So here's where I need your help:
I have this fantasy of getting everyone bowling shirts with silly nicknames stitched on them.  Is this insane and anyone know where I can get them and then get them embroidered?
There's gotta be a trophy. Maybe more than one.  Best score? Worst score?  What else?
How does one make a bowling ball cake?  Dome pan or something?

I so suck at this kind of thing.