Ok, so I'm working on a world with command blocks and I want to make my own crafting recipe to give a player a custom names item. The way I do this is by using 3 command blocks to test for each item and when all 3 items are on the ground it gives the player the custom names item. The problem is that if there are multiple players on my world it gives everybody the item. How do I fix this or is there a better way to make a custom crafting recipe? Thank you for you help