Model:

There are two versions of the model, one with lines pattern, and another one with squares pattern.

I will upload pictures of the two completed models as soon as possible.

Instructions:

Print with the groved bottom in contact with the bed.

It's very simple, everything you have to do is to use two strings, and pass them through the holes at the bottom of the pot. Then you need to put them into the grooves*, forming a cross. After this you only have to knot the strings, to hang it where do you want.

*In the 3D model is shown only one groove at the bottom, but it's only a visualisation bug.