I hope you have prepared for it! I posted some tips for the event a while ago and so far the estimates are holding their places, at least on a few smaller realms where less people have anticipated the rising demand for the items.Do you want more gold tips? Don't forget to share!
My main realm is a high population server so more people have prepared for this than I'd like, making the vendor item prices a lot lower, but still very much profitable. There's however no supply of eggs so I can freely decide their prices until I get competition.
The event has been going on for only a couple of hours and I've already made about 4000g, mainly from small eggs and mageroyals. Though I've dominated both markets for a while already so there's almost no competition - yet!
Check the supply of the items listed here and start farming while the prices are high!
Northern Eggs seem to be the lowest in supply. I've found Goretalon Rocs to be the fastest source for farming them. Lots of birds, very fast respawn time. As a 85 mage one shotting everything I couldn't kill them fast enough to get to wait for respawns! Took about 10 minutes farming to get 2 stacks of eggs.