http://www.bookshop.vic.gov.au/government-publications-vicroads-look-bike-riders-sticker-pack-p-87502.html?
Look for Bike Riders - Sticker Pack
Author: VICROADS
Sticker
Reference: 99788
Look for Bike Riders before opening your car door. This pack includes a set of four transparent stickers, a bumper sticker and an information card. VICTORIAN ONLY CUSTOMERS. MAXIMUM ORDER 200.