LODI, Calif. --
A Lodi, California man is showing off the world's largest yo-yo collection.
Steve Speegle has more than 30,000 yo-yos. He is a yo-yo champion and came out of retirement to do a few tricks.
The yo-yo is one of the most popular toys of all time, with plenty of ups and downs. Right now Speegle is campaigning to have the yo-yo recognized as an Olympic event.
If you have a yo-yo, start practicing because National Yo-Yo Day is June 6.