The Museum of Hoaxes
http://www.museumofhoaxes.com/hoax/af_database
http://www.museumofhoaxes.com/hoax/aprilfool/
http://en.wikipedia.org/wiki/Museum_of_Hoaxes
Pranks,etc.
http://www.youtube.com/watch?v=Ihtwh5hcHcY
This is more impressive with both arms:
http://www.youtube.com/watch?v=nPuLFamgeNY
http://www.youtube.com/watch?v=vHgi6ZC3U5A
Joke
A: What's the difference between making love and making a sandwich?
B: (B doesn't know the punchline so shakes their head "I don't know.")
A: (A shakes their head and walks away.)