This is the place to put contests/events.

Be fair, don't break the Gaia TOS.
Make everything clear when you start a contest/event, and be sure you can handle running on your own if you decide not to ask for help.
If you want an announcement about made about your contest/event, notify me.
Once people have entered a contest/event, if there is a fee and you decide to cancel it, you MUST refund the gold.

You may also post your ideas for guild wide events.