Guess who's coming to dinner:@)
I think this is a simple idea for a kids party and you can find these little dinosaurs for $1 at both Walmart and Dollar Tree.
They'd also be cute take home gifts for the kids.
If you're running with this theme for a good natured ~big kid~... Here are some corny one liners:
It's the Big One!
You're Dino... mite
Roar-It's your birthday
Don't fret, you're not as old as ~this~ guy
You're not a dinosaur... You're... um... vintage:@)