The website Thrift Store Runway holds a monthly contest where contestants submit thrifted outfits in an attempt to win one of the prizes. Entries must be made of thrifted items and cost less than $50. Last month I entered several kits and one of them won!
TSR gives five prizes each month. If they receive less than 50 submissions each prize will be $100; if more than 50 submissions each prize will be $500.
In the month of November they received over 150 submissions so each of the five prizes were $500. So, I got $500 as well as a donation from TSR to the thrift-based charity of my choice. Very cool.
I encourage you to enter the December contest with your best thrifted outfits and see if you don't win!