Since August is only going to be a half-month, that might make sense. For full-month challenges, we probably want something a little more complex. Here's some edits to the challenge idea:
August Challenge: Trapped Room!
System: D&D 3.5e/4e
Party: 4 Level 4 characters, including Melee, Rogue, Arcane, and Divine
Objective: Create a trapped room that the party must cross to continue their adventure. The winner will be the room that best challenges all of the party members.
Specifications: The room may be of any size up to 25 5'x5' squares, and may contain (or summon) no more than 2 creatures.
Anyone got the urge to write up a good advertisement? Besides the challenge, we should probably include a little bit about the workshop in general so as to draw the best crowd.
I'll see if I can get the guest book thread up today, too. At the very least, it should be up before we go advertising the challenge.