Jun 06, · Stress balls are probably the most popular stress relief toy because they are simple, but effective at reducing tension and stress. The one above, Serenilite, is a top rated stress ball with a star rating and over positive reviews on Amazon. Many claim it’s . Adult play dough Also called stress relief dough, adult play dough is pretty similar to the stuff you played with as a kid. But they come in more neutral colors and even essential oils, in some.