PrEP

hey! it's foxie
at school we are doing a thing called PrEP in PrEP we make things and sell them! this year we are making things out of recycled items we have 4 weeks to make a business and sell our items!
I need your help to give me ideas of what to make and how much you think they are worth! please remember that the items have to have been used before!
you can use tools that don't have to have been used before but you have a limit of $200 to spend. think of as many ideas as you can and make sure that you say how much you think that item would be worth!
hope you can help me! thanks for reading this!
cya l8r!
Foxie