Ask HN: What can I play with planning poker cards

I've got planning poker cards. Now is winter holiday season. What can I play with this cards? My non-technical friends do not understand why this deck looks soo different. Instead of explaining them Agile Manifesto and Dark Side of Estimation (maybe I should evangelize them?) I'd like to play with them using this cards. Any ideas? I know we can play War or Poker but there are fewer cards than in "normal" deck.