Aqua colours are water based paints great for face painitng, cheaper versions of these can be found eg: snazaroo which is great for kids and any halloween makeup.
I tried my hand at a quick ‘corpse bride’ face paint from tim burtons animated film. Great fun this one!
I also did a skull face paint which will go down well at halloween, quite freaky when seen from a distance!
Or you could do a simple Geisha look for fancy dress
Or maybe a sugar skull. On this one i used prosthetic horns to look like tusks these were made by myself using silicone in a gelatine mould and attached to my face with silicone.