NGS Style Manual‎ > ‎- M -‎ > ‎

maker, making

If not in Webster's, this suffix is usually written as a solid compound. Write as two words if it is part of a long or awkward combination or subject to misreading:
            reefmaker, reefmaking corals, spaghetti maker, policymaker
but     decision-maker, decision-making meeting

The following list contains established solid compounds:

  ax
bag
barrel
basket*
bed
beer
bell
bellows
belt
blanket
block
body
boiler
bolt
book
boot
bottle
bow
box
brake
bread
brick
bridge

broom
brush
bucket
bullet
bush
butter
cabinet
cake
candle
candy
cap
carpet
cart
case
cement
chain
chair
cloak
clock
clog
cloth
coach
coffin
coin
color
comb
cone
core
cork
couch
cradle
crate
cream
cup
die
dish
doll
door
dough
dress
dye
Earth
edge
fan
felt
glass
glove
glue
gun
hat
hay
heat
hedge
heel
helmet
holiday
home
hook
hub
ink
iron
kettle
king
lace
lamp
law
leather
lock
love
lute
mantua
map
match
mat
merry
mint
model
money
myth
needle
net
noise
pace
pack
paper
pattern
pen
phrase
picture
pig
pill
place
play
policy
pot
rain
reef
rope
rug
sack
safe
sail
salt
saw
shoe
soap
spectacle
speech
steel
tent
tile
trouble
watch
wig
wine
 
*Except for ancient culture in American Southwest, which is Basket Maker.