Inspirations
Tumbler
A type of toy that can tumble over and then straighten up itself.
This formed the basis of the mechanics of Dino.
Mood Ring
A ring that changes colours accroding to the "emotions" of the wearer
Probably the earliest device that dynamically displays "emotions" of its owner.
Wikipedia entry on "Mood Ring"
Tamagotchi
An virtual pet inside an egg-shaped casing
The idea of a virtual creature encased in a physical shell evolved from this device.
