Deck of Cards - pull out a card one at a time and do the assigned exercise until the whole deck is gone. The number of the card is the number of reps. For example, a 6 of hearts would be 6 Burpees. A Queen of diamonds would be 12 KB Swings.

Diamonds = KB Swings
Hearts = Burpees
Clubs = V-ups
Spades = One -arm Ring Rows
Jokers = sprint 400m/Row 500m

This is a great workout and also fun. You can use any four exercises which makes this a different workout everytime.