Standalone Minecraft Sign Entity, you don't need any other addons whatsoever.
Press your use key (usually E) on it to change the text, every line has a maximum number of 15 characters even though textboxes are unlimited!
Model is from DJ Lukis.LT's Minecraft Model Pack, get it here http://steamcommunity.com/sharedfiles/filedetails/?id=106449281
A Gmod bug is preventing custom fonts in Workshop addons from working, so no nice Minecraft font for now.
