Back in 2010, Models Own had a similar sale on their website for reaching so many followers on Facebook. Well they are doing it again after reaching 100,000. Until October 2nd, you can save 50% off the majority of the Models Own website (there are some exclusions such as boxed sets) with code SUMMERSALE. Those that live stateside will still have to pay the slightly ridiculous shipping costs but if you've been eying their polishes, this is a way to get them, and with the discount, shipping becomes less of an issue.
Happy shopping!