Steamboat Willie Keychain

Since Steamboat Willie is in public domain and basically is Mickey, decided to make this key chain to sell. There are three different versions, the first one being a silhouette, the second having facial details and the third version having facial details enclosed so they it can be filled with resin. I modeled it to be only 1.5 inches but the keying wont work. Scale up until the Y-axis (from ear to ear) is 51 mm or 2 inches wide.