Jenny Everywhere's house (Say The Word)
From Jenny Everywhere Wiki
When she first shifted into one universe, one incarnation of Jenny Everywhere found herself in a “fantastic house” which she subsequently adopted as her own.
The mysterious construction was a relatively small structure when viewed from the outside, being a solid sphere covered in circuit-board patterns, encased in a hollow cube. The single, rectangular door, however, lead to a homely interior far larger than the outside would suggest. The house could fly through the air, emitting a green glow when it did so, although it is not clear how Jenny piloted it. (COMIC: Say The Word)