It says something about me that when I saw this example of geek ingenuity, my second though (after the obvious 'cool!' ) was that it poses problems for the theories of some creationists.
If the way a banana (a) fits perfectly into a human hand (b) proves that a was created for b to hold, then surely this also proves that bagels were created for CD spindles to hold. Which I'm sure would come as some surprise to the original creators of both, especially the bagel's creators - given they pre-date the CD by some centuries.
Not that that particular creationist argument needs any more debunking, it's quite stupid enough already, but a bit amusing at least.