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Dunkin Donuts in D.C. is one of several businesses offering free items to celebrate the Washington Capitals winning their first-ever Stanley Cup trophy. Friday, June 8, 2018 (DC Dunkin Donuts/Twitter) <p></p>

Local businesses offer free burgers, coffee, sandwiches to celebrate Caps Stanley Cup win

The D.C. area is still celebrating the Capitals winning their first Stanley Cup, and businesses are getting in on the fun by offering free food to customers.

Z-Burger in Tenleytown will give away free burgers between 11 a.m. and 3 p.m. Friday. If a customer visits the restaurant and says the password #ALLCAPS, you will receive any kind of single burger (one per person).

Papa John's of D.C. is giving away 21 free pizzas Friday. All you have to do is retweet and follow for a chance to win one.

The company is also offering 50% off of online orders for customers. Visit and enter promo code 'CAPS50.'

Dunkin Donuts is giving away a free medium iced coffee, but it excludes cold brews (one per guest). The offer is not valid on mobile app orders.

Roy Rogers Restaurants is offering a free sandwich with the purchase of a large fry and a regular or large drink.