Sure you could just toss some catnip into a brown grocery bag and unleash your cat, but these cool new SuperCat Catnip Caves do the same thing without the utter mess. These unique bags are basically coated like a giant Scratch 'N Sniff sticker with micro-encapsulated catnip scent bubbles that burst when rubbed, scratched, or attacked. This unique Nano Burst Technology lasts for around 6 months or until your cat shreds the bag in a total freakout. Thankfully, they come in a set of 4.