The cheapest durable material I've found for creating banners is used billboard vinyl similar to this
http://cgi.ebay.com/Huge-14-x-48-Us...ryZ61574QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
Now, ordering it off ebay will only make it a similar cost compared to tyvek from a local hardware shop - mostly because of shipping charges. However, if you call around to your local billboard companies they will more than likely have lots of left over stock they will be glad to sell you for a fraction of the cost.
Here in Utah I've found used billboards for 20$ each, making it around 0.03$/sq foot, about 1/4th the cost off ebay or tyvek.
We cut one up at a sign making party tonight and discovered that you don't even need grommets to hold the signs up, it's tough enough that a hole will work. Our ~2x4 revolution signs were less than 50 cents each with all materials and paint.
Very good stuff, it'll last longer than the signs useful life.
This would also enable people to create much larger signs without much money invested, if you're willing to create a large enough stencil you will be able to build the sign at a very low cost.
http://cgi.ebay.com/Huge-14-x-48-Us...ryZ61574QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
Now, ordering it off ebay will only make it a similar cost compared to tyvek from a local hardware shop - mostly because of shipping charges. However, if you call around to your local billboard companies they will more than likely have lots of left over stock they will be glad to sell you for a fraction of the cost.
Here in Utah I've found used billboards for 20$ each, making it around 0.03$/sq foot, about 1/4th the cost off ebay or tyvek.
We cut one up at a sign making party tonight and discovered that you don't even need grommets to hold the signs up, it's tough enough that a hole will work. Our ~2x4 revolution signs were less than 50 cents each with all materials and paint.
Very good stuff, it'll last longer than the signs useful life.
This would also enable people to create much larger signs without much money invested, if you're willing to create a large enough stencil you will be able to build the sign at a very low cost.