I found the Altador cup prize page. http://neopets.com/altador/colosseum/prizes.phtml
I finally cashed in my prizes for that, the Colossum stamp and a Yooyu, and keychains. I can find the LDP one if you need that one too.

I'm very happy with my points, we did good to get that many.

I have my eye on the shadow hammer too. I've heard that the lampost is not a good weapon in the BD. I like the door, by not usefull for me. My Neohome is empty. I love the plushies though, I want the Illere one. I'll probably just buy the cheaper items I want, and wait to see what ones are the most expensive in a few months before cashing in too.