Hi @Marwa-Adam, does your cafe exist already or is it a concept you are working on?
I am not sure I understand the connection between what seem to be your key objectives: raise awareness about waste, provide art trainings and grow entrepreneurs? Will artists who do work on waste become more entrepreneurial through being members in your cafe?
Have you read about the toys out of trash project? Is that an example of the work which could be encouraged? Feel free to connect with Hadeer by leaving a comment with your feedback!