What if you used a slogan to explain that you are more than just cupcakes. Something like
PartyCakes "providing the whole party AND the cake"
or "not just cake...the whole party"
Something to that effect. BTW, I went with CupcakeDuJour Cupcakery but I fall in the same category as you so I had to explain myself all over my cards and such that I provide printables, favors, cupcakes, sweet treats and more!
Good Luck!! :)