If you're in a Halloween mood (like I am nearly constantly) you could fold a favorite character and/or a full sized, functional mask...

Mask of ULTRA=MAN by Nishida Shatner, on Flickr

Remember remember... by Chosetec, on Flickr

Mardi Gras Origami Masks by origamiwolf, on Flickr

Spitzer's Dream by firstfold creative origami, on Flickr
Or you could fold a beautiful, non-functional objet d′art...

Fanbeard Series, 1 by sa2r9, on Flickr

toltec 3 by origami joel, on Flickr

Roy Iwaki by Jon_Tucker, on Flickr
You needn't be so representational either, if you're in a more abstract mood...

One of Us by Giacomo Favilla, on Flickr

http://www.flickr.com/photos/62572859@N08/7308930928/
This month's challenge is really whatever you choose to make of it. Have fun.
A few rules:
-Use a single uncut sheet. It can be any rectangle (including a square), an equilateral or isosceles right triangle, or any other regular polygon (i.e. all sides have the same length and all corners lie on the same circle).
-The model has to be designed by you, this month.
-Enter as many models as you like.
-Sinubuj will judge this month's challenge and choose the theme for next month.






