My parents just bought Sydney this item in small (for pets up to 10 Lbs.). She isn't use to it yet, but she's only 14 weeks. It helps for taking her places. You can also wear it on your back.
Pet-A-Roo™ Front Pet Carrier http://kyjen.com/products-img/pt-petaroo.jpg This hands-free pet carrier was specially designed to accommodate small dogs and cats up to 20 pounds. May also be used for rabbits, ferrets and other small animals. For maximum bonding time with pets! Comes in two sizes and a variety of colors including stylish pink.
OH00588 Front Carrier - Small - Assortedcolors 10.25"W 13.5"H 7"D
OH00589 Front Carrier - Medium - Pink 12.25"W 16"H 9.5"D