Or, it may be called a Copy Cat Challenge. All you have to do is choose a designer from any of their teams and find one of their cards you like and case away.
I chose this beautiful and fun card of Leslie Miller's:
You can find Leslie's blog, Running with Scissors here. I love that name.
Stamps: Flourishes Home Tweet Home and Flourishes Birthday Pennants
Paper: PTI white cardstock, Stampin'Up! Old Olive and Kraft, dp is from Paper Loft-wild daisies(bottom of card) and my die cut dp is Magnolia Ink-A Little Yummy for the Tummy...red plaid
Ink; Memento Rich Cocoa and Bamboo Leaves, Stampin'Up! Cherry Cobbler
Accessories: Martha Stewart Laurel Leaf punch, Spellbinders Poseabilities Flower Creations die cut, Spellbinders nested pennants die cuts, Cuttlebug embossing folder-Just My Type