popping paint filled balloons on a canvas . put paint tape to cover the place to stencil, put paint filled balloons around canvas, pop with darts (slingshots?), let dry, use stencil to add silhouette - love it! Or do the crayon melting thing!
Option Use I second piece of same bottle, make a pincushion on one end ( glue gun a ribbon to cover the raw edge) and the zipper for a sewing kit! Two plastic bottles and a zipper, nice small gift holder.