Woochie prosthetics, ..far better than tacky masks & comfy too!.
I love woochie, since making a screw up of my demon horns (ok I didn't have time, & kids were already knocking the door down)
Prosthetics mean that you can stay normal, comfy , but look as weird or crazy as you want.
A simple prosthetic if removed carefully can be used again & again, so combine with makeup to add to the effect might cost you a bit to start with however make-up gets used!
Typically for a good effect we could spend around £5.00 ..pretty cheap really to significantly alter your features or use in it's entirety as your costume.
Therefore try this link to the site & pdf, to get an idea of what you can achieve with a nbasic latex prosthetic, some gum (& remover) make up powder & a few paints.
The site is very descriptive, with plenty of colour make-up's to complement & enable you the best effect for your time.
Woochie is available in the uk, it's very prominently featured within fancy dress shops & sites!
We tend to use Snazaroo paints & powders to finish off as they're widely available in the uk (& uk made)