So how much money do you spend on cat toys? Silly human! Leaves blowing in the wind are absolutely free. Bits of paper will also do nicely.
With my cat Missy, it was pipe cleaners. She liked to play “fetch.” She also liked to stash her favorite pipe cleaners under the sheets in our bed when she wasn’t using them. The accidental discovery of these prickly objects in the middle of the night was never what you’d call pleasant.