Jake demonstrates how to keep prying coworkers out of your secret stuff with this Altoids-tin storage box, complete with an "alarm" fashioned out of the guts of one of those musical greeting cards. Ah, the "sound of punishment." Enjoy.
If you haven't yet, subscribe to our 5-Minute Projects video podcast via iTunes. And see the whole series at popsci.com/5minutes.
138 years of Popular Science at your fingertips.
Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page
Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?