From the last names of the two inventors: Forrest Mars and Bruce Murries ... hence M & M's.
NO, because of that ... m&ms and skittles only hav the letters ;)
M&ms
M&Ms
maltesers & m&ms
by a stamping machine
M&Ms yummy!!!!!!!!!!!
M&m
m&m
M&Ms
40000001000 $
M and Ms
M&Ms