Designers - where do the models go after the photo session?

Just this past week someone ask me about the crocheted and knitted models. What happens to them after the photo session? My easy and immediate answer was: it depends on what it says in the contract that you signed.
Here's an interesting article on the NatuallyCaron website that explains what they do with the models used for the Caron yarn company. Scroll down to the title: Recycle, Reuse, Re-wear.
I love the fact that afghans and baby items are donated to local hospitals.