What Items (and wallpaper/flooring) Would Look Well With My Campus Set and 7-Eleven?

[Boidoh]

What items would go along with my sets, also which music.

For my 7-Eleven I currently have in it.

-Shopping Cart
-Minimalist Table
-Mannequin (Clerks Shirt)
-Surveillance Camers
-Wall Speakers
-7-Eleven Wall Design
-LED Display with 7-Eleven Design
-K.K. Flamenco Playing
-Steep Hill Musicbox

and for Campus:

-K.K Mambo
-Cool Globe
-Homework Set
-Breaker (just because its in my basement)
-Festive Flag
-Letter Set

What else would go along with them?