The Happy Hocky Family by Lane Smith

You might know Smith from “Stinky Cheese Man” fame, but you’ve got to get this one. Best excerpt”

Grandma has come to visit.
Grandma’s perfume smells like flowers.
LOTS and LOTS of FLOWERS.
“Grandma, do you hear the Magic Monkey? He is calling us from outside! Open the window so we can hear him, Grandma. OPEN the WINDOW WIDE!”