So for a school project of mine i have to create a Design with a need and my idea was a throwing card training aid. The idea is that you have a standard deck however instead of playing cards labels (e.g 4 of spades, 6 of diamonds), it would have diagrams of where to hold the card and how to throw them. There would be different variations eg being left vs right handed, different grip positions/techniques/styles. These cards would be made of a stronger material than regular throwing cards so they would last longer then normal cards but be the same dimensions so there wont be a major difference between both cards.