On my speedy swaps, I used this pretty and very simple stamp "friends".
It's part of a big of a bigger FREE set called Happy Wishes. This is a short video that shows you not only the set but also how to create a fun ombre look using tools you already have (regular ink pads and sponges and any sponge works fine!).
It's part of the Sale-A-Bration offer and it was my first pick, my next was the Pandas and then Amazing You. More on these 2 sets later this week.
happy wishes - MaryKate