This close up of the tray shows the multi-layered effect of the "crackle" finish. The base coat is cobalt blue. Subsequent coats of blue-green, yellow & forest green were applied, utilizing 2 different types of "crackle" media. I think the "crackle" finish draws one's eye to the green tiles, especially the Sakura "Galaxy" tiles with gold stars. The painted surfaces were sealed with 2 coats of water-based polyurethane (low VOC).
Make stress balls out of balloons and either rice, flour, or beans! Take a balloon and stretch it out a little. Then fill it with rice, flour, or beans.( You can use a funnel.) You can decorate them in a million different ways. Lots of fun!