Get a deck of cards. Go through it for time. The number of the card equals the reps.
Spades: Dive Bomber Pushups
Clubs: Commando Grip Pullups
Hearts: Air Squats (for time, and to parallel)
Diamonds: Iron Mikes (jumping lunges)
Jacks, Queens or Kings of any suit: 20 Burpees
Aces of any suit: 1 Minute Plank