Growing up I had a Skip-It which was a hard plastic "ball" that was attached to a plastic type rope that had a plastic ring you'd slip over your foot. The goal was to skip along, continuing to move the ball around your ankle, while "skipping/jumping" over the ball as many times as you could. To keep score, the ball had a little counter that would count (and eventually reset) your number of skips. It was a great workout for kids and one of my favorite items to play with when outside. Needless to say, while I was at Kohl's I found this Empower Skipfit Cardio Skipper on the fitness display (near the shoe section) and I was so intrigued I snatched one off the shelf.
Admittedly, when I checked the price and it came up to be $19.99 I wanted to put it back. Then I googled it and couldn't find it offered anywhere online (particularly Amazon) so I decided just to pick it up and put it away for next spring/summer as an outdoor activity I can do at home.
This version is a plastic/nylon type ball that's attached to a fabric rope that has a fabric loop that would go around your ankle. Sure, the weather is less than stellar these days (cold/rainy) and the winter is on its way .. but it'll be a nice workout to bust out when the weather starts to cooperate.