If I get a drink out of the fridge, I will say, "Going once? Going twice?? No sale."
If it's a difficult decision, I'll sometimes go, "Here's your extra time."
When someone tries to get my attention, in my best Paul Lynde, I'll turn and say, "Whaddya want, Beaver Face?"
I have worked in, "One down, nine to go, Miss Killgallen" into conversation...usually gets a giggle.
My college friends have now taken to saying "Pow-pow-pachow" ("Price's" losing horns) in disappointing situations.