Deck of Cards
I made kings = 13 reps, queens = 12, jacks = 11, aces = 10, and everything else at face value. That means I did 100 reps each of pull-ups (jumping, of course), push-ups, sit-ups and squats. And I did two 8-minute runs (about a mile), when the two jokers came up.
Total time: 44 minutes. It felt good!