02/18/2014 Next Gadget Rage?

I had a dream before I woke up this morning (02/18/2014). The dream was about a wrist band made of what appeared to be plastic or glass fused, semi-transparent beads. It changed color when it sensed someone was invading your personal space. There were variations of the design of the color changing beads. The ones I saw worn in my dream changed to purple, green or a varied pattern of purple and green. Memorable and nothing I ever think about so I believe it is a prediction of some item or event I will see in the future. I might do an internet search on green or purple color changing beads to see if I get a hit.