how about pennants, pre-cut shapes the kids could hand sew on with bright colored yarn...using outlines of their hands, they could make critter appliques..how about silly hats to wear in the parade, decorated with all kinds of "leftovers"...smock sorta top that is hooked just at the shoulders that slips on over their heads they could hand stitch at shoulders and decorate...give me time, I'll think of more...