1.
Via Twitter: @https://twitter.com/#!/megangarber
2.
3.
Via Twitter: @https://twitter.com/#!/Jeff5mith
4.
Advertisement
5.
Via Twitter: @https://twitter.com/#!/gluckstadt
6.
7.
Via Twitter: @https://twitter.com/#!/SimonMaloy
8.
Advertisement
9.
10.
11.
12.
Via Twitter: @https://twitter.com/#!/jouleofthenihil
Advertisement
13.
Via http://http//Twitter: @www.twitter.com/michaelrolston
14.
Via Twitter: @https://twitter.com/#!/atotalmonet
15.
16.
Via Twitter: @https://twitter.com/#!/3rdplacepress
Advertisement
17.
18.
Via ohmykevin.tumblr.com
Illustration by Kevin Cobb
19.
Via ohmykevin.tumblr.com
Illustration by Kevin Cobb
20.
Via ohmykevin.tumblr.com
Illustration by Kevin Cobb
Graphics by Chris Ritter and John Gara for BuzzFeed.
