LMNO Peas is the perfect book for you. Keith Baker combines occupations and avocations with learning the letters of the alphabet. His conduit for this information is a humorous group of green peas who guide the reader through the alphabet. For example, K is represented by kickers, kayakers, and kings. Baker's funny illustrations show an Elvis-like pea singing in a castle. If only he had added Priscilla Prespea in this illustration, but I digress.
LMNO Peas would be a great source for creating an alphabet book with your class. You could brainstorm different jobs and place them in an Alphabox. Then students could illustrate a picture showing that job or hobby.