It's Only a Model
Challenger: Lord Corwyn Ravenwing
Supplies are expensive and times are tight, so what else is new?  Create a model of ... well, something.  A device, a town, a tower, a castle, a vehicle, a scientific marvel ... anything that would be impractical to build full-size. Bonus points for documentation, accuracy of scale, accuracy of building mateirals and mechanisms that work.
Winner will receive his or her choice of a suitable tool (i.e. I'll have some cool stuff and you can pick one).
Please contact challenger Corwyn Ravenwing at  IMPORANT:  Please let me know how much table space you will need, this challenge has the potential to take a lot of space and the event coordinator will need to plan accordingly.