You can use the box as is to create a planter that's the same shape, or you can cut the cardboard into various shapes and ...

Place an old bucket or plastic bowl covered in cling wrap on top to act as your mold -- this will determine the shape and diameter of your planter. Keep in mind that your towel and concrete will ...

[Thomas Sanladerer] wanted to create some molds using 3D printing for concrete and plaster. He used a delta printer with flexible filament and documented his process in the video below. If you ...