Remember Spirograph? You can play with it on the internet now. But even cooler than that is Spirograph pancakes.
A semi-scholarly analysis of the costs of the damage wreaked by Calvin of Calvin and Hobbes on his poor hapless parents*
This is your brain on metaphors
One way to solve the chicken-or-egg problem? Make the egg from scratch.
Fingerprint words - a meditation on the words that make us who we are
Here's a bunch of great music videos:
The iOS Autocomplete Song - no deep meanings here, but it is pretty catchy
Give It Up - a brand new song built from random YouTube videos
99 Red Balloons played with nothing but actual red balloons. (He only used 4 though.)
OK Go has a fun new video that was filmed with a drone in Japan
And from the forthcoming Annie remake, You're Never Fully Dressed Without a Smile
And finally, a Rube Goldberg machine powered by light:
*Yes, I know this is all in good fun, but I do have a quibble with the methodology. By mixing price estimates in 2014 dollars for given events and explicitly stated costs as given in the comic (in 1985-1996 dollars, depending on the year of the strip), the author underestimates the cost of Calvin at today's prices by failing to account for inflation.