ar -start the car ar
igh -fly high
ng -thing on a string
oi -spoil the boy oi
oo -poo at the zoo oo
air -that`s not fair air
ure -sure it`s pure ure (they might not know this one yet)
ur -nurse with a purse ur
ear -hear with your ear
ow -brown cow ow
oa -goat in a boat oa
ai- snail in the rain
or -shut the door or
er-better letter er
sh/ch/th have no rhymes.