Catering Services from McMaster University for the event - $2,318.82, Prizes from Best Buy for our winners - $695.99 (payment after returned prize item), Snacks from Costco for our hackers - $66.99, Flyers and poster printing from local printing services - $206.79, Organization Registration for GitHub - $11.25 (receipt in USD), Domain + Email Registration from Porkbun - $41.45 (receipt in USD), Volunteer snacks from Tim Hortons and Gino's Pizza - $51.66