-having a PJ day
-bring in your favorite stuffed animal
-have a parent bring in a craft to do with the class
-have the birthday child read announcements over the loud speaker
-bring in a special game to play or movie to watch
-have lunch with the teacher
-have an extra recess
At the end of the day, if the child/family really wants to bring in a special treat, then great. Just make sure that you give the teacher advanced notice so he/she can notify food allergy parents.