We did it first!
I saw this campaign which celebrates the Post-it brand’s 30th anniversary (second image). It is a massive 5mx5m post it hung at Liverpool St. station in London. Reminded me of a group project I did in my first year for a brief to remind people to buy poppies in the run up to rememberance day (first image). Please excuse the rubbish mockup of a giant post it on the Parkinson building at Leeds University.
Looks like we had the idea first!