Take out your No. 2 pencils, people. This isn't a test, necessarily, but this jar will allow you to track exactly how much lead you're using on a regular basis. Don't worry: You will not be graded on your progress.
The standard mason jar is fitted with a custom cap that has a built in sharpener. Simple—and super well-done. Chicago-based designer Craighton Berman successfully Kickstarted the concept last year as a playful means of measuring creativity, but recently shifted the focus towards the kitchen; Manual, his new company, is what he describes as "a housewares brand for people that aren't afraid to use their hands."
The jar is meant for domestic chefs into on-the-go recipe fixes, and those who prefer to document their meals with words, not photos. My food skills are severely limited but I love this idea, so I'd opt to keep it on my desk as opposed to countertop.