"My HP 15c scientific calculator. I got it as a birthday present from my dad back in 1983 when I turned 16. It helped me through high school, was there when I got a masters in engineering and it has been with me for almost my entire career since then. It shows no signs of giving up anytime soon."
Sure hope you enjoyed being the idiot of the day.
My neighbors have a light bulb that is well over 100 years old and still works. Would a new bulb provide better light and consume less power? Sure. Would it be as cool? Never. :-)
#36 got one at yard sale couple years ago