21 Planters from 60*60mm to 180*220mm, with integrated coasters.
The Version 1 (https://www.printables.com/model/97503-planter-assortment) had the problem of water spilling out the coaster when watering plants in some of the smaller pots. The V1.1 fixes that by having a larger Coaster (25mm instead of 15mm high).
No support needed.
The author remixed this model.