I haven't been feeling well lately, so my sleep hours are rather odd, even for me. I was up at around 5am this morning, and I was listening to the audio from Eddie Izzard's Circle DVD, and I got to the Awesome Universe bit - the joke is basically that the word "awesome" doesn't mean the same as it used to; we (Americans) use the word "awesome" to describe things like hot dogs and socks. So when someone tries to explain to the president that we live in a galaxy with a hundred billion stars and that it's an awesome sight, the president says, "What, awesome like a hot dog?" ("Like a hundred billion hot dogs, sir.")
That connection between "100 billion" and "hot dogs" got stuck in my mind, so I set out to calculate how big 100 billion hot dogs would be. I based my calculations on the plain old Oscar Mayer Regular Beef Frank, 1/8 lb, 6 3/8" x 1".
100 billion hot dogs is:

And that, my friends, is awesome.