A big shoutout to United With Love's blog for some great MaddyBag ideas on their blog (they call them "WelcomeBags"!). They have a bag below with some unique ideas. Our favorite is the Old Bay flavored beer. This bag is on the more expensive end, but gives a few ideas if you are looking for a unique look.
United With Love also has some more content ideas for a DC wedding that can be found at this blog post: http://www.unitedwithlove.com/2014/07/17/washington-dc-wedding-welcome-bag-ideas/