What do you get the dev who has everything? How about placeholder kittens, compete with their own API? The place kitten website provides on-demand placeholder art at the resolution you specify.
For example, you could ask for a 625x225 image by submitting a request to:
http://placekitten.com/625/225
If kittens aren't your thing (don't tell Steve), you can check out placedog.com instead. Same API but with a canine slant. For ursine lovers, there's also placebear.com.
Other sites with less kawaii include P
