Just found out yesterday that some distribution carts for the GBA Pokémon events still exist.  Would absolutely love to get my hands on one.  I'm interested in any of them really, but the ones I REALLY want are as follows:
Mystic Ticket Distribution Cart
Aurora Ticket Distribution Cart

In the event that nobody had these/they are way too much money for me, I'll make offers on DS event distribution carts, since there seem to be much more of those around.

I don't know what these things are worth, so name an asking price.  That being said, I have some valuable/semi-valuable SNES games that I will be willing to trade as part of the deal:
English PAL version of Terranigma (reproduction box, original cart)
Fire Emblem: Thracia 776 (Nintendo Power Cart - Cart only)