I just posted a rhyming activity at TPT. This is a great game for the beginning of the school year.
Reinforce your students rhyming skills! This game is played similarly to GO FISH, except that students say "Crazy Cats" when they don't have a matching rhyme to give away. There are 40 words - 20 short vowel rhymes & 20 long vowel rhymes. The cards can also be used as a center for word work. There is a recording sheet to list the rhymes that you find. It's priced at $1.00.