here are my two entries -
Euro: http://farm7.staticflickr.com/6230/6363204577_9c10b4525a_b.jpg
GP: http://farm7.staticflickr.com/6031/6363208207_99a6bd72d6_b.jpg
I don't have any experience with pricing or production.
The site Chris P mentioned - www.buildasign.com charges $1.00 each for an order of 100, or $2.99 each
This is not an endorsement of this site - I have never ordered from them.
No charge from me for the design.