While we're being creative, here's an alternate process based on the card game 1000 Blank White Cards. Start by cutting a bunch of pieces of paper into four pieces each. Give each player two of the 1/4th blank sheets of paper. Tell them to draw a dungeon location on each sheet. Tell them to write 3 facts about each location along the side of the sheet - they could be monsters, items, smells, NPCs, whatever. Shuffle all the pages and pick one at random. Lay it out on the table. Read the details of the location, ask each person a question about the location, and then tell them an immediate situation they face. When they leave, take a spare 1/4 sheet and draw some tunnel, maybe a branch, then draw a new location from the stack. For each room, ask the players for more details. When you're half way through the stack, give each person an extra blank 1/4 sheet and tell them to make one more location that relates to a location that is already in play. When the players explore all of the locations, the adventure is over - draw the world map together and head home to write your fronts. I dig this method because the players get to write locations, they surprise each other because they've only seen the ones they themselves have written, and the GM still gets to interpret their location and weave it into the developing setting/narrative.