Is it just all items named with the word mask? Is there a list?

- no not all items with the word Mask work. Red Rreign mask work, any mask with the word "masquerade" in them should work, animal masks (like Black Feline Mask), masks with the word eye (Brown Eye Mask), mardi gras masks (at least they worked last year), and lots more.

What don't work are the zombie face masks, human masks, rubber monster masks and gas masks. There may be more.

thank you for the response! D: bummer that the zombie face masks dont work x( I was hoping on that one to match up with my HA disease, oh well.