I've used stickers in the past to number Frames in a squad. I'm incorporating them into the scenery this time around because I've run out of the Printed Tiles I normally use and I also wanted to do something a little different with this build. I'm using a 2x3 Pentagonal Tile because the point of the tile could denote direction. They're based on a 6x6 Round Plate. I originally thought about placing the points of the tiles facing inwards but that only allows you four open Studs to play with and I wanted a little more than that. I then placed the stickers on the tiles. I know that the placement isn't perfect, especially the "W", but imperfection adds a little character.
I used this sticker/non-Printed piece technique in the new table-setting I debuted in my group's last game. You'll get to see it in the battle report on Friday.
So doing things this way is potentially cheaper -- of course I checked after writing this and found that one of the Printed Tiles I use is five cents in a decent quantity on Bricklink. The Pentagonal Tiles go as low as $0.03 each in small quantities. I paid $5.99 at Michael's for this package of 209 stickers which comes out to $0.03 per sticker. Add that to the tile cost and you get roughly $0.06 per Piece.
Aside from the price, the main reason to do something like this is to use Fonts and/or Colors not available in standard Lego printed pieces. Along with possibly using pieces that aren't normally printed. I hope this gives people ideas or techniques to use in their terrain builds. Flickr Page.