Oh man... I've never worked with concrete, but I would love to make a desk stand that looked like a little montréal métro station. They're all rather brutalist, and have flat tops haha
https://commons.wikimedia.org/wiki/File:Station_Radisson_Met...
https://commons.wikimedia.org/wiki/File:Station_Radisson_Met...
These two come to mind:
https://commons.wikimedia.org/wiki/File:Station_Radisson_Met...
I'll accept that I'm biased by living here though haha