1) A 3D optical illusion of a girl chasing a ball has been placed in the road near schools in Vancouver to get drivers to slow down by appearing as if they have hit the girl. 2) Japanese retailer Uniqlo is running a Twitter campaign called "Tweet for a Treat" where tweeting about items on their website can lower the prices before their new online store launch. 3) Lingerie brand Wonderbra unveiled a large 3D billboard in London featuring their latest bra that requires special 3D glasses to see the "full effect."