A six-ton igloo. Made of real ice. At the highest point in London. Yes, we had to work out how to get it up there, in a building not designed for events. No, we're not entirely sure it was sensible.

We've handled full event production for some properly unusual moments at The Shard - giant Twister (harder than it sounds when you're 800 feet up), the venue's first-ever sleepover, and what might still be the highest film screening in the UK.

When the brief is "do something no one's done before at an iconic London landmark," we tend to say yes first and figure out the logistics later.