my guy, you done half the work for me. T.T. i was just looking for the ear/horns!

the latches on the side are quick release magnetic latches used for tacticool stuff. the name brand is Fidlock, iirc, but there's a thousand knockoffs

these for example: https://www.amazon.com/Magnetic-Quick-Release-Buckle-Replacement-Accessories/dp/B094D98FQG

i love how those look but honestly i'm super unhappy with how most of the people selling these masks attach them. they scream 'tacked on', because they kind of are...