Couldve told you the cease and desist would happen. You are creating a product that is blatantly using a large company's IP and selling it for profit (even though that profit supposedly went to a charity). You need activision/bungie approval, and they will want a slice of the money, probably so much that it wont even be worth making the product anymore. And thats if they even give you permission to use their IP Now if you made this and distributed it for absolutely free, with zero way for you to make money off of it, you might be able to continue, but i doubt that given the copyright laws in place All that being said, i kinda want the iron bond