This cool mask makes room for a filter and it even comes with a slithering tongue. You can use this one for a snake costume, a lizard, a Komodo dragon or, pair it with this adorable dragon costume ...

Over at their Etsy shop, they have pdfs you can buy for designs for these polygonal masks with some really cool looks that could pass for a comic-themed costume. This owl mask for instance is a ...

it may be easier to convince them to wear a mask if the face masks are cute or cool. Amazon, Fanatics, Gap, Old Navy and Under Armour offer some great options. Gap offers three packs of face masks ...