Time to change time to talk table top event

I will be running a stall at a busy secondary school. Table top event are always well attended by members of the public, local business running stalls and students alike regularly attracting 300+ visitors. Admission to the school hall costs 40p which goes to the school fund. I will be running a stall to raise awareness by handing out promotional material to generate awareness and get members of the public to pledge to help the campaign. I have a history of mental illness and will talking to visitors and sharing my experiences. We will be selling cakes cookies and general goodies, so come down and grab a bargain. All money raised in the stall will go the charities behind Time to change, Mind and Rethink Mental Illness. There will also be a raffle and competitions through out the event.