colour changing MARVELS: beyond hyper colour tees.

sparkle paint is from:

http://alsacorp.com/products/eclipse/eclipse_prodinfo.htm

The tiles are from:
http://www.movingcolor.net/

Colour change crayons:

"10 Temperatures Crayon Supplied In Kit:

Initial Crayon Color: Light Gray: changes to Violet Blue @ 248°F, 120°C

Initial Crayon Color: Pink: changes to Blue Violet @383°F, 195°C

Initial Crayon Color: Pale Blue: changes to Light Green @419°F, 215°C

Initial Crayon Color: Light Purple: changes to Bright Blue @437°F, 225°C

Initial Crayon Color: Orange Brown: changes to Black @473°F, 245°C

Initial Crayon Color: Yellow Brown: changes to Light Violet @572°F, 300°C

Initial Crayon Color: Dark Violet: changes to Red Brown @608°F, 320°C

Initial Crayon Color: Aqua Green: changes to White Buff @680°F, 360°C

Initial Crayon Color: Red: changes to White @878°F470°C

Initial Crayon Color: Apple Green: changes to White @1,112°F, 600°C

Specs:

Check Surface Temperature
Metal Working - Heat Treating - Welding
Measurement of Operating Temperature - Bearings
Easy to Use - Non-Toxic
Accurate ± 5º C
Temperature Range - 120ºC to 600º
Nontoxic nonhazardous"