Interactive Vibrating Butterfly Book Butterflies are tiny solar powered flyers! Butterflies are coldblooded and often sunbathe with wings openjust to warm up enough to fly. They can increase their internal temperature by vibrating their wings. You Feel Vibrating Butterfly Ring, Waterproof Feel Vibrating Butterfly Ring, Waterproof A beautiful little vibrating butterfly Unfortunately the camera on a cloudy day doesn't pick the colour up very well it was more yellow than these photos seem to indicate According