Hi, We are looking at a number of devices but the ones which include an integrated lock typically have very boring key designs. We like the idea of the integrated lock as it reduces the noise and size of the device but we would like an attractive key design as it is worn around the neck. Does anyone know of a way to improve this? I imagine this is a common issue, perhaps custom made keys are a solution? She likes the current key as is a simple design with a heart shape at the top where the necklace thread goes through. So it looks like a piece of jewlery which is nice, and so a purely functional key design is not ideal.