The motorized cat toys in many cases are electrical power by two or 3 AA/AAA batteries, that's handy, stable and safe. Several "toys" aren't formally offered as "cat toys," but some could make the best and most enjoyable toys. For instance, ping pong balls are a favorite for many cats. https://bookmarkinginfo.com/story20111597/indicators-on-interactive-cat-toys-you-should-know