Around here everyone uses corrugated plastic signs (4mm), one or two colours and expensive. But I got this feeling that a lot of people on this site use a cheaper but better looking, thinner plastic and full colour. I know RND sells them but I'm not sure what kind of plastic it is. It doesn't have to be all that durable of course, cheap is the key for me. Can someone give me a general idea of how much these thinner signs cost? I'm not only looking for some applicator sign (6x6) but Power raking/yard clean up signs (9x18 or around there).