Well, think about it. How would armor look on a sweater ? If you say 'good' or 'I don't know', think for a longer period of time. When you arrive at ,"Pretty awful" or "Mediocre at best" you may stop thinking as you have arrived at a correct answer.
The truth is, limited resources create limited results. As with all things, do the best you can in the moment and improve as time and interest allows. As long as you're not kidding yoursef that you'll have an incredible Fett costume, you'll be fine. Yet, you will have an adequate one. We all start somewhere.