Vintage "On the Rocks" Novelty Low Ball Cups | 1970s Gag Gift HOWW MFG.

A funny gift for someone who likes whiskey and dad jokes. There are literal rocks inside the bottom chamber of these glasses. Made from acrylic (thankfully, otherwise that's dangerous with the rocks!). Screen printed "on the rocks" in iconic Helvetica typeface. 

Sets of these SOLD OUT for 3 figures. Who would have guessed? Each measures approximately 4" tall.  Good vintage condition, slightly scuffed but not major. Comes as a set of two.