About Cattitude Club. Cattitude Club is an awesome subscription box for Aussie cats! These mystery boxes are filled with different high quality products every month, including cat toys, treats and care products. A staple product is cat grass/catnip kit to keep your cats happy all month long. Join our mailing list for 10% off your first subscription! 4-6 high quality products. Only for Aussie cats!. Exclusive discounts. Give a gift. Join our mailing list for 10% off!. Two subscription plans available.