That is sort of the case with this one. I made this at the end of last year and intend, at some point in the future, to further develop it into a really nice little app that will dynamically take any image and create a collage with it, much like my original flash version I made a couple of years ago.
For now though this is just a prototype, a proof of concept if you like. The data is hard coded (generated from the flash version) but the images are loaded from Flickr and I have the interactive side of it working nicely (click an image to zoom into it).
All the code is commented so check out the source, although like I said I’d probably do things very differently if I was to write it again.