Tremellas and jujubes were bought from JD.com at a total of cost 31.9 RMB with free shipping. The paper bowls were bought from Taobao.com at 17.4 RMB with free shipping. The sugar was provided by the group member, since there was no such small set selling in the market. We converted its price of 0.7 RMB. Above all, the initial cost of the 50 RMB was completely spent up. X borrowed the huge rice cooker from its own company, a baking factory, and he had also cooked tremella soup. Y was in charge of designing the e-poster and printed it for free by supporting from his advertising company. Since the consideration of the environment, we only printed few A3 copies. After communicating with teacher, we decided to set up our mobile booth in the middle yard of the MBA building.