Four letter words--Change 0 to 1 letter to make a new word

maul :troll:

mule :racehorse:

Elmo!

Elon :face_with_spiral_eyes:

Note ♩

tone :loud_sound:

gone :broken_heart:

goon :disguised_face:

loon.

look :nerd_face:

cool :sunglasses:

cook :man_cook:

nook :sunny:

rook :crossed_swords:

took :sunny:

tool :gear:

loot :ninja: :moneybag:

toot :trumpet:

boot :boot:

foot :footprints: