Sure! Here are some happy boy rhymes:
glad lad
happy rhymes with nappy
Snappy joy? See the Related Questions below.
Something that rhymes with happy bee could be sappy flea.
Sorry to disappoint you but there is no other word for happy that rhymes with it.
The word that is the opposite of happy and rhymes with happy is "unhappy."
crappy
happy ways and happy rhyme!
boy-o-boy
There are no perfect rhymes for the word nappies.
Tappy.
Happy trail :)