If you're talking light, that'd be white fabric. If you're talking water, you've got several options, my favorite of which would probably be steel wool.
Nylon fabric.
it absorbs something
black absorbs more heat than other colors because it absorbs wavelees
Yes, black fabric absorbs more heat because it absorbs a wider range of light wavelengths, including those that carry heat energy. In contrast, white fabric reflects more light and therefore absorbs less heat.
ur face!
Something purple'ish. Depends on how effective the dye is and how the fabric absorbs the dye.
Nothing
The dark fabric absorbs heat - which is transferred to the ice cubes, melting them faster.
Nothing, the small intestine absorbs the nutrients, and the large intestine absorbs water.
nothing
Mesh I think. It would be my choice because it keeps you cool and absorbs sweat. ;)
nothing