A long time ago, there was Arnold.. well maybe not too long ago. Check out the original picture in the link given!
I've seen a lot of Photoshop effects but this one is really amazing. With this simple tool anyone can create old looking (century old perhaps) photos in a few seconds :)
1) Visit the website link above.
2) Click on 'Choose File' to select a picture from your harddisk, and hit the button in the red box below. (You may also click on the 'URL' button to enter an image URL found online)
3) Depending on picture size, it might take slightly more than a few seconds to apply the effect to your photo. Just right click and save the image if you like it!
Here's a sample conversion done in a few seconds: