Time Pestle
In one universe, teenaged genius Professor Awesome invented the Time Pestle, although he admitted that he “shouldn't have”. (PROSE: Pit Stop)
It was later revealed that Jenny Everywhere was indirectly responsible for this, having left a book titled An Introduction to Recreational Metric Engineering out where a bored teenager could read it. (PROSE: Heavy Reading)
In anther universe, where Professor Awesome was a grown-up and genuinely dangerous supervillain, Awesome built at least one Time Pestle, of which Jenny Everywhere became aware, but later lost it in some way. When Jenny tried to take down Awesome as he gloated from atop the turret of his Omnibus, she anxiously wondered if the claims that he had built a second Time Pestle were true, fearing that there might “literally” be “no tomorrow” if they were. (PROSE: Morning After)