Not all catnip filled toys are created equally. We’ve tried quite a few brands and shapes. There’s one specific toy we were introduced to when we adopted Rey and Finn almost 2 years ago. It’s the only catnip toy worth it as far as we are concerned (we includes the cats here.)
Two of our cats will literally tear these open to get at the catnip.
You can find these on amazon dot com, chewy dot com and in pet stores. They are $5 to $6 each. Yes, that seems expensive, but trust me, it’s worth it.