I really like the idea of being a chicken mascot, I think I'm going to try it out by being the mascot for my local team!
Seriously, how fun! And cool! Why do you aspire to wear a chicken costume?
I want to inspire people to eat chicken. Chickens are fun and delicious!
That's great that you want to volunteer! I'm not sure your running around in a chicken outfit will whet people's appetite for chicken. That's OK, because the idea for your to whip up enthusiasm for the team, not barbeque the mascot.
But I want to do this so people want to each chicken, I don't care about the team's performance.
Whatever your reasons, I wish you the best. It will be fun for all either way, volunteering is something that will be something exciting to do. Chicken is delicious and you probably don't even have to inspire anyone to eat it.