What character would a Golgi body play the part of in a mall? (cell analogy)

Cell analogy questions require us to compare the cell with a system or process in physical world. We can compare a cell to a school, supermarket, mall, etc. An easy way to do that is to consider the role played by a cell organelle and then see who or what plays a similar role in the analogy. 

The Golgi body has the function of modifying, sorting and packaging proteins. This is something akin to a post office. If we consider a mall, a similar function is played by a storeroom. The storeroom receives materials, sorts and packages them and then sends them to various departments as per their needs. Thus, a storeroom in a mall is analogous to the Golgi body in cells.

Hope this helps.