This trays and pots use pegs to slide on. As this pegs are a bit tricky to print I added a more easy-to-print version.
There is 2 types of objects : Tray and Pot
And there is 2 print otions : Vase mode or Wall mode
• Download and install latest version of Openscad here. This is an opensource light software (21MB).
• Download the *.scad file and open it with Openscad
• Play with the values in the customizer panel (if it is hide go to view/hide customizer)

• Once you find the values you want/need, press F6 to render…and then F7 to export as STL.
The author marked this model as their own original creation.