We're going to both be changing our names to Joss-Reid (mylast-hislast) after the wedding, which presents its own set of hashtagging challenges. We both really love #HotForHyphens, but I think we're the only ones that will find that hilarious.
One idea is that since most people call me Del and he's Eli, we could use DeliLove or @DELIghtful, but I'm not 100% sold on either one of those so I'd love so more suggestions.