Rubber Chubby Medium Lock - LilacMarla Aaron rubber chubby medium lock in lilac. Marla Aaron made rubber Locks. Literally they are made completely out of rubber. They took them a really long time to make. They tested, retested, had so many prototypes and thenthey started making colors. They are beyond fun. There is something so precious about the ability to turn their Locks into rubber. One of the founding principals of their work is that all materials can be precious. When you mix