Derick Childress knew he wanted to do something better than ordinary when he proposed to Emily Kern, and I think he got it right. Eight hundred unique ten-second exposures later, he had his proposal.
The video illustrates how Childress used light writing to create his proposal, and a slightly more detailed breakdown of the project can be found on his and his fiancee’s web site. Talk about putting some effort into your proposal! I’d say it’s on par with the Muir Owl proposal, enlisting the help of Neil Gaiman, and hacking a video game to pop the question.