MALWARE!
vest
People wear an apron. Some people wear an anklet.
you would wear a cap or a cape or a corset
something green that starts with the letter I
Unmask? Something un-m..
The last letter of the word "m" is simply "m" itself, as it is a single-letter word. If you meant something else, please clarify!
Children frequently call out Mom. It begins with the letter m.
If it is a wax museum, then it could be a wax Monkey, which starts with the letter M.
Moccasins
math
Melon
I was a music teacher.