The silver Easton 110 flex Aluminum shaft I tried to use when I was 13. That thing would be too stiff for me now; it was crazy stiff at that age. I also had a 100 flex gold Easton; it wasn't quite as bad, but still too stiff. I knew nothing about flex, skate hollows and all the great things I learned from this site at that time. I did stumble upon some sticks and shafts with more appropriate flex ratings, but that was basically because they were on sale and I got lucky and not because I knew what I needed.
Also, the Nike 004 helmet. It looked great, but was too narrow for me at the temples and gave me headaches. I moved on to helmets that aren't really known for their style, but fit me comfortably.