Leftover yarn into colorful crocheted blanket

My good friend Edith brings me yarn from thrift stores all the time. I have known her for over 16 years and decided to take some of the left over yarn that she has given me over the years and crochet a blanket for her. She is stopping by after work today and has no idea why. I just told her I have something to give her and when I do the only thing I am gonna tell her is "Thank you for being my friend"