/&/ versus /oI/: 29 pairs

Al oil
Ali oily
aster oyster
asters oysters
bad buoyed
caff coif
caffs coifs
can coign
cannas coiners
canned coined
canning coining
cans coigns
cat quoit
cats quoits
clad cloyed
dallies doilies
dally doily
grand groined
hast hoist
Jan join
jazz joys
lads Lloyd's 
latter loiter
massed moist
pant point
panted pointed
panting pointing
pants points
trackers troikas