I made those t-shirts, how much should I charge for them?

I am going to this electronic music party and I am gonna sell these there.
I want to sell as much as possible so not such a high price but not too low to respect my time doing them.
Most of them are 100%cotton some are 70%
I have trifted all of them but I feel I got better quality clothes for cheaper price from the second hand.
Also I just got them out of the washing machine, that's why they are a bit wrinkled.
Help me price them.
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
I made those t-shirts, how much should I charge for them?
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