Lam & Lamb

Why are police on the lookout for wool?
Because it's always on the lamb!
Mm-hm.

Chance & Chants

Chased & Chaste

Why did Pac-Man make out with the ghost? 

Because he was tired of being chaste.

Shoe & Shoo

In the summer, I say "shoo" to my shoes.

Graham & Gram

How much does a s'more weigh?
Two grahams.

Gawd, I could keep this up all year... :)