I've still got one of those heavy glass mugs with the SDC logo etched in it, probably from around 1981 or 1982. I bought my wife a refillable mug with Christmas on it this spring...it was from 2008. I recently spotted a Christmas mug from 2007, a Kidsfest mug from 2004, and another Christmas mug that lights up at the base (and still worked) from 2004 at yard sales recently. The mug that lit up was free, the Kidsfest mug was a quarter, the 2007 Christmas mug was fifty cents. (Yeah, I took 'em home with me!)