How to make aromatherapy stress balls? step 1: use a funnel to put 1/2 to 1 cup of flour into a water bottle. tip: adjust the amount of flour to the size of stress ball that you’d like. 1/2 cup will make a small stress ball that’s great for little kid hands, while 1 cup will make a large stress ball that’s good for larger adult hands. Artcreativity soft foam balls pack of 12 lightweight mini play balls for safe indoor toys fun, vibrant assorted colors, unique birthday party favors for boys and girls 4. 4 out of 5 stars 14 $11. 97. How to make a stress ball. stress balls are easy to make from easily available materials. all you need is a few balloons and the right material to put in them. if you want your stress ball to feel more similar to a commercial stress ball, the sewing method may give you the results you're looking for. gather an. How to makearomatherapy stressballs? step 1: use a funnel to put 1/2 to 1 cup of flour into a water bottle. tip: adjust the amount of flour to th...