DIY Elephant hanging cutouts- or any silhouette can work. Find a stencil online and trace it onto different colored scrapbook paper. Then tape, glue, or staple onto a string. I love the elephant idea :)
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!