The Sorry board uses the same string joints as the chess boxes to fold up when it's not being used.
I'm not doing anything extra to screw up the game of Sorry. I just wanted to play it with some friends away from home, and figured I could make my own version. The tokens and board are laser cut from wood, but instead of trying to print the cards, I coded the cards in C++. The program is completely random and goes through the entire deck (45 cards) while keeping track of the number of specific cards that have been "drawn." To keep playing once the deck runs out, I can run the program again.