There's a small list here:
http://www.ratemyserver.net/forum/guide-request//event-guide-list/0/Let it be you didn't even bother searching or not but as for the prizes... The server is new. To even think about MVP cards is basically an auto-fail for the server.
Above all else, the server is a low rate too.
The best you can probably do with be giving out a basic starter kit. The goods, ya' know? Something like a small good set of potions for both HP and SP or some basic equips. You can even decide to hand out 100k as a starter event prize. 100k might be too much, no idea, depends on what kinds of players you get there first.
You can also try in handing out Event tokens or tickets. Something for future-use.
What about a small amount of OBB and one OPB?
Better yet, you can just make the event like increased rates. The rates being increased is the prize itself.
I'll get back to you with some more ideas.
