call for illustrators - Magic Photobooth

Hello! I am running a project for the Hackney Downs Open Studios on Thursday 3rd July in London
and I am looking for illustrators to participate
Here's the idea:

The name is "Lyly's Magic Depictor". It is inspired by the Sketch-O-Matic
I participated to in 2012, created by Bren O'Collaghan for Cornerhouse in Manchester. 

It is presented as a photobooth, but instead of having your photograph taken,
you get a handdrawn portrait.

How it works is there is an illustrator hidden in one of the booth, and s/he can see the sitter
through a one way 
mirror (plexiglas with reflective film on it). 
The sitter can see the other side of the mirror but will only see his own reflection. 
The illustrator draws the portrait on a sheet of A6 paper in 2 minutes, then slides it
through a little hole in the receptacle outside of the booth (in grey in the mock-up). 
Magic! You get an instant portrait :)

Illustrators who would be available during the Open Studios on Thursday 3rd July 
for at least 30 mins between 6pm and 9pm. 
Once I know how many people are interested
will email you with a schedule. You need be comfortable sketching people
in no more than 2 minutes. I’ll provide the paper, you just come with your favourite pen/colours 
(no watercolours, paint or anything that takes time please).

There will be a suggested donation of £1 per portrait, that people will give through 
a slot inside the booth - you’ll be able to take however much money you have made 
with you when you finish your shift. You are also free to sign your drawing 
with your name and website at the back. 

Send me your name and website (or any example of your work) at 
as soon as possible. 

I will email a schedule to everyone on Wednesday evening.