Yeh I think I did... but I was more referring to bumper stickers as a whole...
Saw one this morning It was a biohazard symbol on the back window with Zombie quarantine team or something.... it was on a Nissan Qashqai
Auto glym wax, really good stuff... but not cheap! Has done me around 4 applications
https://www.amazon.co.uk/Auto-Glym-High-Definition-150g/dp/B001FEISS6/ref=sr_1_2?ie=UTF8&qid=1476271740&sr=8-2&keywords=autoglym+wax