Sticker Company Needed

I am looking for a good sticker company...any suggestions?  The sticker must be 8  1/2 by 22 inches long and in full color.   Besides me being a realtor...The main reason I need this is because my parents own the "D Phone Company" which operates 700  Payphones...we were thinking that another company or realtor who has funds may wish to advertise on the phones which we have in MD,PA,WV, VA, and DE.  We also are looking for a great sticker company that will provide these stickers at a cost effective rate for our advertiser.  Believe it or not the normal cost to advertise on 1 payphone is $200.00 but my parents rate at the moment is $20.00 just to get us started so this presents an exceptional opportunity for the right person or company.  Due to high gas costs it has prompted my parents to slash the price of the ad cost to find a quick advertiser who is interested in putting their name out with these minature billboards.  This week besides real estate work I've made a commitment to help my parents find solutions...I was curious if any of you Realtors or companies have a company you use to make your stickers?  If your company might find use for 100 ad spots or more please contact me at: (302) 270-1191 Ask For Tom Davis.