I enjoy a little sensory stimulation every now and again but I feel a little to old to walk around with a fidget spinner. Not to mention all this talk about poisonous amounts of lead being found in some fidget spinners. I was gifted a mini tin can of thinking putty and keep it on my desk at work. This stuff really helps me think!
I did spend a good fifteen minutes in the shower trying to scrape Flarp Noise Putty out of my daughters hair once. With that being said, make sure to supervise your young children.