Gardening is full of mistakes, you just can't give up
Hypetufa is a way to be creative without having much artistic talent. Portland cement, potting soil, and perlite - mix with water until you form a thick oatmeal lump. Get your favorite plastic container, I use a low planting bowl, spray the inside with cooking spray ( my best advise), and apply the tufa mix. Keep in a plastic bag for a day or two and remove from the mold - rough up the sides to your liking. Then a few weeks in a plactic bag - and your are done.
The key to creating nice containers is patience and the willing to accept failure. I have screwed up as many as I have made. Some of my nicest looking pots were by accident. Gardening is full of mistakes, you just can't give up. The hypertufa contaner above broke when I was putting it back in the mold to cure. The front 1/3 broke off, leaving the back higher. Upset for a day or two, I worked with the problem and planted the pot to fit the defect.
Below is a container that I have planted and replanted over the years. I tried to make it resembel a real horses trough ( just shorter)
I have lots of fun making these containers - and more fun teaching people how to make their own. Try it --