I found this ages ago, I could have sworn I’d blogged it, but apparently not! Slurpee Austrailia created ‘Bring Your Own Cup Day’ for just one day. For a 24 hour period, customers could take any vessel they could get their hands on to fill with Slurpee products. Everything from boots, KFC buckets and trophies were filled. Asking fans on facebook what they’d bring the best suggestions were turned into adverts. With a 270% increase in sales a drink was sold every 1.8 seconds.