oil or powder?

[thunderlizard]

yes,
after a little google research, apparently paint is also admissible.

So is light.

[BrilloPad]

I always thought "oil or powder" would make a great title for a book by some brass.

[Diver]

Green jelly

[cailin maith]

Custard

[chef]

i'd have to say wax, a happy medium between oil and powder

[FiveTimes]

Custard

swarfega

[KathyWoolfe]

i'd have to say wax, a happy medium between oil and powder

mix oil and powder together.

[Diver]

Lithium

[realityhack]

If the powder's a pigment then add oil gradually and grind down evenly and you have paint. Depending on the oil you might also want to add a binding agent and some chalk to control the tint.

[BrilloPad]

it has to be powder.

I bet you have been asked more than most.

And replied L'oreal Men Expert...