I mean like, being made a tycoon game which is detailed and good.
Toys\Games: Well, duh.
Furniture: Never know when you are the next IKEA.
Label/Musician/Band Management: Odd one here.
Transport: I mean like making a transport company. I already have an idea of this in my mind.
Food/Restaurant: Would be nice.
Dude, let them finish their first game at least! 
Daffyflyer Tycoon like Kubby said.
Transport Tycoon.
Buzz Aldrin’s race into space (I kid you not)