While spending idle time around cats, my husband and I discovered how to make easy cat toys. Basically you just crochet or knit a ball and fill it with stuffing. If you want to drive the/your cat crazy add some little catnip. Personally, I prefer the crocheted balls, since while this is never a long lasting toy, the crocheted structure lasts a bit longer since the stitches are more independent. Leave a long tail for some fun.