you are gonna get alot of flack if you are thinking about doing it. They have lots of protein and that is not something that is common in a chameleon diet seeing they are primarily insectivores.
exactly what carol said you could in theory, but you don't want to put your cham in risk by giving it too much protien or somthing not common to its diet like a bird or another lizard, besides pinkies are exspensive
Heres some flack for ya.
That much animal protein is not good at all for ur chameleon. and that the bones haven't developed fully at the pinki stage so calcium is out the window.. less hydration than a hornworm. So ur giving ur chameleon an animal protein fat pile.. its been done I've done it people practice I'd never recommend it.