One Dollar Store..Where all things sell in $1?

Hello, I want help. I want to build one dollar store where all things will be sell in $1. For example, many developers and designers have a portfolio and previous work. And the value of this work is only for showcase or showing to someone. But I want to build a platform where every developer or designer make an account and put their best portfolio and buyer will see the portfolio and buy it or previous work of developer in $1. Are you think it’s interesting and gain market value or not..? Or any website provide this type of service where you can sell your previous work?