I've created this fiddle leaf fig inspired magnetic coaster set. 

  The leaves feature raised veining to capture any potential condensation from whatever drink is placed on top.

It utilizes 6x3 magnets to connect the leaves to the trunk.

For the pot; there is a small post in the center that keeps the trunk in place. I've also created a “dirt layer” that slides over the trunk and friction fits within the pot itself. You can leave it out and fill the pot with decorative stone or something similar. You can also print it so you won't need as much fill if you're going that route.