For two of my games, I asked the players what their character's favorite Monopoly piece was - the game being extremely popular among the Human Wilders. So I understand unusual asks. 

[quote]I'd rather not make any real "rules" for what/how to worldbuild here. I want it to be a free space. But most roleplays that I've ran have, at some point or another, had at least one player think of some insane stuff that I couldn't have possibly anticipated when I wrote the rules out. Then I have to choose between allowing said insanity or adding more rules to the game.

So, if we end up needing to make guidelines for the worldbuilding, it'll go here.[/quote]

Perhaps before someone brings something in, they should get your permission first? 

But yeah, this could be fun.

[u][b]Item Application Form[/b][/u]
Item Name:
Produced by:
Magic:
Rarity:
Appearance:
Intent:
Strength:
Weaknesses:

So, for example:

[b]Item Name:[/b] Living Wagon
[b]Produced by:[/b] Any wagon-wright
[b]Magic:[/b] No
[b]Rarity:[/b] Uncommon, used by frequent travelers like caravaners, road nomads, and entertainers
[b]Appearance:[/b] A long, narrow house built on a long wagon frame, either with canvas stretched over hoops or with paneled walls and a roof that is pulled by a team of horses. While the interior can be customized by the owner, typically there's beds at the front of the wagon and a small stove in a bricked section that allows it to be used for cooking and heating the interior without burning it down, with a chimney that pokes through the roof. Midway inside hanging from the roof is a hook for holding a lantern. Barrels, jockey and belly boxes can carry water, flour, grain, tools, ropes, canvas, and other essentials that are accessible from outside the wagon.
[b]Intent:[/b] Comfort in road travel, a bit more protection than a tent.
[b]Strength:[/b] Typically can carry a handful of people.
[b]Weaknesses:[/b] It's confined living space, and requires some maintenance to axels, wheels, and harnesses. Not intended for speedy travel.