Masks have been in use for thousands of years to disguise, to entertain and to protect their wearer. For centuries, masks have been fixtures at costume balls and carnivals. It was a grand way to have a bit of fun without letting on who you were. Today, masks have even made their way onto fashion runways.

The single most common use of masks today is for protection against smog, germs and toxic gases. On that health note, there are electric anti-aging masks and even a cancer fashion mask--both of which you’ll find below.

Masks come in different forms from imagined Photoshop varieties to extreme face painting and even the surgically enhanced “masks” that celebrities wear. All of them disguise how their wearer truly looks.