Produce a tool small enough to fit in a bag, that can roll and stick a long line of stickers together in one go. Suitable for long messages, or communicating time and/or motion.
Good for escalators, busses, pillars (360 degree viewing)
Use small square stickers, and arrange to produce pixel art. Color some in, do two layers to get 3d feel. Idea is to mess with the resolution of the wall. Placing overtop of existing advertising with sharp imagery will produce contrast. Guns & Ammo Theme.
3. STREET LENTICULAR
Use lenticular lenses overtop of inkjet printed images to produce morphing effect as viewer walks by. Imagery: anti-smoking, placed near smoker hangouts. Alternate theme: Fuck The Police + Image of Sting & Band.