Over the course of 4 or so hours we created an interactive installation where festival goers could use the haptic device and sound effects to be guided to target cannisters containing sweets. We had about 40 people pass through the installation, many in fancy dress:
I've demo-ed the Lotus at conferences before, but a music festival, where people are just passing through while looking for a good time, or something unusual, is quite a different experience. One thing we tried was getting people to race each other in the dark. That was fun!
Here's the blurb for my Thursday evening slot (which featured in the festival program):
THURSDAY: ASCENT17:00-22:00 Blind Robot’s Bluff: Adam Spiers Navigate through darkness with the Haptic Lotus, a cybernetic instrument that manoeuvres through space with engineered grace. Use the unfolding petals to guide you to your destination, and ponder the meaning of light in the dark.
More information on the event can be found on the Question website with some extra pictures in the Guerilla Science Flickr album.