Washington DC is often America's forgotten step-child. Although DC is the nation's capitol and located right here in the continental US, the city is used to little slights. For example, when coins were issued to commemorate the states, DC didn't get one.
One Utah flag shop has remembered to include DC. According to central Utah's Daily Herald,America Welcomes the World in Utah sells the DC flag. And yes, someone in Utah has bought the city's banner.
If you're not in Utah, get apparel and gifts inspired by the DC flag from Best of Washington DC T-shirts and Gifts.