Since according to the title of this thread
we are to come uo with some jokes....
DA DUUUU!
In Baltimore city there are lot's of liquor stores I know are haunted
Wanna know how I know?
Well, they advertise it!
Every time I'm riding the bus through the city and pass a liquor store there'd bee a sign up stating they had beer, wine and
Oof!
Just cleaning up loose ends ...
The notion of storage space that does not add the mass of things stored in it is different than a time machine, so no, NOT like a TARDIS. (Whatever that is.)
Another Heinlein connection; his extraordinary interdimensional transportation device in "The Number of the Beast" was named the "Gay Deceiver", and it had a door connecting it to the land of Oz.