Suggestion: For a birthday party, laminate or cover with clear contact paper purchased at your local office supply store and use as placemats. The placemats can be sent home as treats.
Suggestion from a viewer:
"We made one copy of the puzzle and laminated it with clear contact paper. Then I placed magnetic strips on the back of each of the pieces and put it on the fridge. It was a big hit and all the pieces can still be found." Thanks for the excellent idea Michele!