This might sound totally weird, but playing with slime [1] is actually very soothing. Make your own glittery rainbow goo with YouTube user Dave Hax's [2] awesome tutorial. It only takes a few ingredients to create — watch the video above for the simple instructions.
Links:
[1] http://www.popsugar.com/tech/Sparkly-Slime-Videos-ASMR-Instagram-42554493
[2] https://www.youtube.com/user/DaveHax
[3] https://www.popsugar.com/smart-living/Unicorn-Slime-Videos-43047603
[4] https://www.popsugar.com/smart-living/Sharpie-Mug-DIY-Project-24955886