There are loads of cupcake designs available. It seems to be the "thing" right now. If you look in the SAL section, a few people are stitching A Dictionary of Cakes.
I know Nordic Needle has free cupcake hardanger design.
A quick Google search will bring up so many cakes and cupcakes patterns it will give you a tooth ache. Or even search cake on this site will pull the projects we have done.
This one is my favorite.. of course, I love quite a few of her designs. And can be done in any color if this one is not the right pink.. thats the thing with monochromatics, you can pick whatever color you want. Do the frosting in one color, the paper in another.. and the ribbon in a third if you want. Happy websearching.