Project had been rejected!!!

Argh!! My project for ENT300 (Entrepreneur) had been rejected... So frustrated... Need to think for a new idea.. What kind of product that we can create by using waste products that had been throw away by industrial factories or hostels... What product that all customers really want to satisfy their unsatisfied needs?? Ya Allah... This really made me being a weird person until i get the fantastic idea for this project.. Waaa... Besides, there also another assignment for MGT361 (International Business)