I did Hello Kitty. I've never been a big fan of it, but it seemed like a cute idea since Stephie was big on Hello Kitty. I took inspiration from this cute design. I used Wet n Wild Tickled Pink as my base. Then I stamped on a full nail design with Wet n Wild Lavender Creme and plate BM21. For my Hello Kitty image, I used Sinful Colors Black on Black and plate m71. As an accent, I placed a hot pink rhinestone in the middle of her bow on my ring fingers.
Wet n Wild retail for $1-2 at CVS, Walgreens, Walmart, Ulta, and many other stores, all of which are listed on their website. Sinful Colors retail for $2 at Walgreens (online/in store) and Target (in store). They're also available for $2.50 at Cherry Culture. BM stamping plates are part of a 21 piece set that retails for $18 on Bundle Monster or their Amazon store. Plate m71 retails for $2.99 on Born Pretty.
Born Pretty has been running a promotion for a long time that offers a free Hello Kitty stamping plate to ten people per day. You do not even have to place an order for anything else. The plate can be found here, along with instructions on how to receive it for free.