So I got to thinking about other sensory things we would do for our little sweetie when she was a toddler. In particular, she adored smells and tastes. As she was a little one who carried around a security blanket she lovingly (and probably mistakenly due to her auditory processing disorder) called "Nonny" after her twin brother would speak about his bunny he carried around named "Bunny", we would put scents on the corners of her blanket for her. Some of her favorites were lavender oil, maple syrup (I know sticky but it dries just fine and retains its smell for a while), and lemon juice or lemon oil.
So if your child has sensory issues and gets frazzled at times, you might find that some scents or tastes might just do the trick. I mean who would ever think that giving a two year old a really hot cinnamon candy to suck on would calm her down and make her feel relaxed!