This is the first battlemap I made some years ago, I made it an empty base with different light settings; so that I could draw props that could be placed on top of it freely. Which allows it to be used for multiple settings.
In one of my current campaigns, the players are using an art academy as the base for their hideout. They used camping stage props to build up a makeshift base. They were given a multitude of different props as tokens to move by themselves to decorate it however they wished.