R/GA London is about to hold its second annual 'make day', when everyone downs tools on client projects and spends the day making stuff for fun.
Last year's projects were hugely varied - from an app that works out whose turn it is to make tea, to a facial recognition system that checks you in and out of the building.
I worked on the Happiness Project.
Our aim? To build a machine that would make people happy.
We did some research into happiness triggers. And then we scavenged, bought, borrowed and stole things to create an immerse setting for our 'machine'.
A white fabric cube containing a rocking chair, a cardboard box, a seashell, a small toy globe and a plastic windmill of the kind you get at the seaside. A big screen displayed a 3D world of bubbles and butterflies.
What should you do? Well, this is where we realised that our machine wasn't designed for a 2 minute demo. We wanted people to take their time - to touch and squeeze and shake and blow the things we'd laid out for them.
Our volunteer demonstrator was delighted by the sound of Bobby McFerrin playing through a seashell when he held it to his ear.
And when prompted he loved the teddy bear in the box who turned the world from night to day when you cuddled him.
But he never got to try blowing the windmill to see bubbles scudding across the screen. Or turning the globe to explore more of the beautiful 3D world we'd created on screen.
Alas, we didn't win the trophy
But what we learnt, is that thinking about what will make people happy, makes you happy. And that 36 hours of working out how to wire up teddy bears and globes and windmills is not time wasted.
I have all the happy pieces in a box under my desk in the office, and it's a delight sometimes to find it when I'm scrabbling around looking for a dropped pen or a lost phone charger.