How do you do two batter cupcakes? I'm wanting to do some pink and white or purple and white ones for my DD bday. Any suggestions?

I would not do two batters unless you are sure they have the same baking times. For two colors, split the light colored batter and color separately. Spoon, pipe, or scoop the two colors independently into the liner and swirl with a small knife or toothpick.

Yep, just like you would make a marbled cake. Or you can make it look like a zebra by alternating the colors, pouring in the middle and letting them spread out as you add the next. Go to YouTube and search zebra cake, there are a few tutorials. That is how I made my daughter's iCarly cake with a rainbow inside. You could do the same thing with cupcakes, just use a pastry bag to fill for more control. HTH Good luck.