Bought, given, or inherited...
What is the worst and/or best running or track shirt you ever got.
Me:
Worst: Shirt that actually said "________ Roadunners."
Fortunately it was free with meet/race entry.
Best: Shortly after the very successful launch of Nike's "Just Do It" campaign. An imitation shirt that said "Just Do Me." Context: the term "doable" had only recently entered popular vernacular. So it was far funnier then (now it is lame). The font etc. was so accurate that most people saw the shirt and read "Just Do It" before the gears turned over and they cracked up.
Your trash and treasures?