In this tutorial I will show you how to make flower pots of gypsum.
I will also show in detail how to make a mold for pouring of cardboard.
I wanted to create an unusual shape, so I used cardboard.
Taking this method as a basis, you can make a mold of pentagons that will also look beautiful :)
Most importantly, secure the cardboard bottom and all the seams with duct tape.
A few hours after pouring, when the mold hardens, you can remove the cardboard to let the pot dry faster.
This should be done carefully :)