Get a bit nostalgic and high-tech at the same time with light-up HDYO yo-yo’s. (Get it? HDYO-YOYO?!?!?!) Learn new skills or brush up on old ones while spreading awareness! They light up in any amount of light – just in case you don’t make a habit of yo-yoing in the dark! As always cost includes shipping and packaging and send an e-mail to email@example.com if you are interested in buying more than 10.