Actually it's a joint project of hers and author Patrick Hatt who sponsered some of the prices. You can find Mr Hatt's Amazon Writers page at http://www.amazon.com/Pat-Hatt/e/B00AGFMYVC. Please have a look at his Amazon-page or his very own homepage (here) where he's presenting his works. Most of them nicely illustrated children's books. Or have a look at his blog "It's Rhyme time" where Pat publishes his poems regularly.
However besides this precious information you can get plenty of excellent prices. So have a look at her annoncement here.
I whish you a lot of fun with Pat's work and good luck with Anne's raffle !