I loved this sign outside Hello Cupcake in Dupont Circle in Washington, DC. I tried their special Samoa cupcake yesterday along with a bite of my friend's salted caramel cupcake and both were delicious! Their website is a little out of date (I'm seeing a March special cupcake) but you can see their flavors here and visit their Facebook page. I was intrigued by their key lime cupcake but only had room for one this time.
salted caramel cupcake
peanut butter blossom cupcakes