Backstory:
This friend was one of DH's best friends and roommates in undergrad, and I lived with her too for a year after college. We are still close friends, but we don't see her as much now that DH and I live 5 hours away. We have only met the guy she is marrying once, but we like him a lot.

They are getting married at the courthouse and having a party at their house afterwards that we will be attending. I want to get them a gift, but I don't know what. They are both in their 30's so they don't need much and they don't really expect to receive anything. I don't think they are registered anywhere.

I know cash is always a good gift in these situations, but I was just wondering if you guys had any other ideas.