Time machine (Meanwhile…)
From Jenny Everywhere Wiki
Jenny Everywhere and Herbie Popnecker once dropped in on the Naked Jungle in Reality Z-25 31-H while flying a time machine that took the form of an airborne, horizontal grandfather clock. It briefly broke down, and Jenny wandered off while Herbie was repairing it, but he got it back in working order soon enough and they departed again. (COMIC: Meanwhile…)