Sometime around 1974 Topps released a set of at least four drinking glasses.
These were probably not available in stores, but only by mail-order.
One collector distinctly remembers mailing away for them, but nobody has yet found the actual ad for them.
The glasses are exceedingly rare, only a few have ever turned up of any title.
There are four known titles:
Fang was unknown until it showed up on eBay November, 2009
Thanks to Tom Pazel for the Picture of Fang