So, here I am playing on my computer when I hear Tyrion doing something in his tank next to me. I look over and I see him puke up something...

It's been 1 week since he has been fed, so I am curious what he could be puking up... Please see the two pictures. The thing is still in his water bowl, I haven't taken it out yet (but will shortly)

http://ball-pythons.net/gallery/show...hp?i=46792&c=3
http://ball-pythons.net/gallery/show...hp?i=46793&c=3

Anyone have any ideas what this is?