Many effective "prison-style" workouts utilize a regular deck of playing cards, such as flipping over a card and performing push-ups for the number of the card until you go through the whole deck. It's an impressive challenge, yet still reachable when taken in pieces. (Although, it will take a few tries before you actually reach it.) So Shuffle Muscle still holds the format needed to be used for these kinds of exercises.
What Shuffle Muscle does beyond that is organize the deck to encourage a balanced exercise program. Each full deck of 52 exercise cards comes with 2 "tutorial" cards that explain how the deck can be used as intended.
Shuffle Muscle is versatile enough to be useful for a short workout session, or week-long program, depending on how you wish to use it. And it can always be re-ordered to suit your immediate exercise needs and constraints.
https://www.kickstarter.com/projects/javenmorrisart/shuffle-muscle-playing-cards/
