original nes copies of super mario bros. and super mario bros. 3.
I had them on snes on the Super Mario All Stars game, but I'm nostalgic, and sometimes I wish I had the originals to go back and play.
And I didn't give it away or sell it, but when I was a kid, I lost a G.I. Joe action figure. That thing was my favorite toy EVER to that point, and I lost it in a Round Table Pizza when I went one time with my parents and my uncle. I was so sad when I went back in, and they hadn't found it, and that toy was gone. Until I got into X-Men later in my childhood and got a bunch of different Gambit figures, that was my favorite toy that I had ever had.