How about a "hunting" event?
Like providing a specific kind of item and quantity to have a reward, gold or maybe an equipment.
Or maybe, "King of the Mountain", starts with a single round robin elimination and the one who stands out the rest will take the prize.
That's how our guild in Atlantica is doing.
"You think video games were bad? That's what they said about rock and roll."
-Shigeru Miyamoto, father of modern video games, and the creator of Mario, Link, Donkey Kong, and Starfox.