Help with cell analogy project

I need help with these and relating them to something: The theme is city
Plasma membrane- City wall?
Nucleus-City hall?
Nucleolus-Mayor?
Mitochondria-
Vacoule-
Lysosomes-
Endoplasmic Reticulum-
Golgi Complex-Roads?
Ribosomes-

Plasma membrane- City borders
Nucleus- City hall
Nucleolus- Mayor (Council)
Mitochondria- Energy plant
Vacoule- Storage building/water tower
Lysosomes- Recycling center
Endoplasmic Reticulum- Highway or road system
Golgi Complex- Post office (Golgi bodies serve to package proteins)
Ribosomes- Factory