Mickey Mouse
adj.
: not deserving to be taken seriously : having little value or importance
Substandard, poorly executed or organized. Amateurish.
Who's in charge of this mickey mouse operation, anyway?
Elkhart Lake — A racing school is a fantasy land business that leaves no room for Mickey Mouse mechanics or Goofy actions.
fly-by-night
: given to making a quick profit usually by shady or irresponsible acts