A good friend of mine will work in Washington, DC for two months in the summer of 2012. Since she will have completed her doctoral studies by then me and some firends (we're all located in Munich, Germany) thought about a "gift certificate" as a present she could redeem while staying in Washington.
We thought about a voucher for a musical show, a fancy restaurant or so. Is there antyhing a Washington resident could recommend? It should be bookable by us in advance and be in the price range of 100-200 USD.