Actually giving such a name is not allowed in Germany.
There is a control procedure,
when giving an unusual name. Normally
made up fantasy names are not allowed. They need to
have some valid appearance as used names before.

I also think that parent should not have complete free will over
the names of their children.
As the children have to live with the name later. They are not
sopposed to be decorations for the pleasure of the parents.
I hate when these exentric "Movie / Music Stars" give their children stupid fantasy names.