This is the Kingdom Key from the game series Kingdom Hearts. This was intended to be full scale for cosplay, but I didn't do it correctly when designing it. However, you can scale youelf to print in full or reduced size. Most keyblade desig I've seen have made the crown part and the handle inaccurate to the original. I'm not saying it's perfect, but it's one of the better I've seen. I intend on making the mickey head at the end of the chain soon. Enjoy :)