It is my turn again.  I have had lots of success here, so I have come
back for some suggestions for Easter-themed snacks for 3-4 year olds. 
I am looking for something tasty, reasonably healthy.  It is a private
school, so not worried about religious connotations (although I
imagine an Easter Bunny is more conducive to the project than, say a
crucifixion).  Thanks.

One year when I was in charge of a bunch of second-grade Brownie
Scouts, we made a healthy (and cute) Easter snack called "Bunny in a
Garden." You put a leaf of lettuce on a plate. Take a pear half
(canned in its own juice is best - who needs the extra sugar?) and
place the pear on the lettuce, rounded side up. Cut another pear half
in two, and position it like rabbit ears. Eyes can be made of raisins
or dabs of frosting; whiskers can be made of pretzels or shredded
veggies. The kids just loved 'em.