So I have a San Disk Ultra Trek flash drive, and I would like to wear it inside a necklace compartment to take on the go. My issue is that I’m having a hard time finding a container large enough to store it in. Ideally I’d like one that’s waterproof. If anyone could reccommend something that can fit the drive, that would be great. I understand that this is an unusual request, thank you all for your help and your time.