In my 40s, married with kids, and playing D&D like a fiend.
Thanks for Jay at thecapacity for sharing this one. This fellow named Frank Hernandez created a light-up dungeon puzzle for his players using Arduino and Hirst Arts molds.
Give it a look (you can find the project site here: link and pictures on Flickr here: link):
Dungeon Puzzle from CodeSlayer on Vimeo.