How do you advertise a bug spray that’s used outdoors on a billboard? But a picture of a bug on it? Use bugs to spell a word? Be boring and just post a picture of the can? Not what ORPHEA wanted to do for their 4D spray. They instead used actual bugs to advertise it. Over time the bugs got stuck to the transparent glue on the billboard only applied in a certain area. Clever stuff, lots of bugs, and use of intrigue in a city!