Only 19th Century Kids Will Remember This

Favorite
Only 19th Century Kids Will Remember This
- -

Graphic designer Andrew Keir thought up the idea behind these promotional posters for the Smithsonian, even though the Smithsonian never commissioned them (and threatened to sue if he sold them). They're going around the internet again because memories are short and they're awesome enough to be seen again, anyway.

Math Is Hard

Favorite
Math Is Hard
- -

It's NickelBACK, not NickelHERESFIVECENTS.

If Aziz Ansari Were Most Rappers

Favorite
If Aziz Ansari Were Most Rappers
- -

Comedian and actor Aziz Ansari is already noted BFFs with Kanye West and Jay-Z (he makes a brief cameo in the music video for "Otis"), so Tumblr site Emceez Ansari helpfully lets us know what it would be like if he were a rapper, too.

Saturday Morning Mashup: 50 the Tank Engine

Favorite
- -

Video contains language that might be too real for some.

Cash Hearts Everything Around Me

Favorite
Cash Hearts Everything Around Me
- -

50 Cent's facial expression and hand gestures is just begging for a "Why can't I hold all these monies?" caption.