Can you copy Tshirt designs on bulk?

I am looking for someone who can redesign a given design 1 by 1. I will show you a T-shirt design and I basically just need a one by one copy. I will need 10-20 designs per day. Please let me know if you are the right person and also let me know how many designs you can copy per day if you do it full day.

I will ignore any standard applications if you don't make it individual to my job offer!!!