I'm looking for information about a particular material(s) that when (combined and) shaken, say within a translucent or opaque rattle, would produce light and in a pitch black room appear to glow the more it was shaken. It specifically would have to be caused by the shaking as opposed to absorbing light because I witnessed the glow dissipate in darkness and start to appear again when shaken vigorously.

I'm not much help on the subject. I also see that no one else has posted any help so I'll give it my best shot.
Tribo luminescence is is the effect of physical shearing of a material to emit light. Like the sparkles of light when chewing wintergreen Lifesavers in the dark.
The glow sticks will increase in glowing when shaken to disperse the 2 chemcials and may increase later in the reaction cycle if there's a separation of the reactants.. (The reaction is defusion limited)(heating or mixing would increase the reaction rate).

A true chemical reaction that only depends upon the shaking to add enough activation energy to proceed would be pretty rare.
(nitro glycerin? too much light too fast? Thinking while writing. There are materials that are not very stable so your quest is not impossible).

Thanks for responding. Someone else on another site pointed me towards Triboluminescence and that lead me to quartz filled ceremonial rattles that apparently glow when the crystals are shaken in the dark. I'm interested in trying it myself to see how well the phenomenon works. There's more references to it here: Uncompahgre Ute Indians
http://www.answers.com/topic/triboluminescence