Put these in your cup for an out-of-this-world drink: Whisky Stones from Space. The granite cubes experienced the cold touch of space (more than 50 degrees below zero) on April 21st when they flew to the stratosphere onboard a cosmic ray research balloon:

You can have a set of 9 cubes for $109.95 (glass not included). They flew to the stratosphere onboard a cosmic ray research balloon on April 23rd, reaching an altitude of 97,543 feet.

Refrigerated whiskey stones cool a drink without diluting it, solving the problem of ordinary melting ice cubes. Your stones come with a greeting card showing the granite cubes in flight.
 
--2021