Learn the Squirrel 4A grind yoyo trick. http://YoYoTricks.com/
Get the Pandamonium Yoyo used in this video: https://yoyotricks.com/shop/yoyo-store/yoyo-brands/duncan-yoyos/pandamonium-yoyo/
The Squirrel is an impressive offstring grind trick which starts in a basic finger grind, and then proceeds down the arm, mimicking a squirrel scurrying down a tree branch.