I was just going to say, there are lots of girl or boy specific things... Like for girls, they have the "Sugar and Spice and Everything Nice" onesies and bibs, and "Thank Heaven for Little Boys" for the boys.
You could always try Safeway, FYI. They have cupcakes there (at least at the one in our town) that have pastel pink or pastel blue frosting. Less work, but still gets the point across