I absentmindedly made this small oval planter planter one morning while I was casting larger troughs. As often happens, I had cast a couple large troughs and had leftover hypertufa once the large trough molds were full. My garage is full of cast-off plastic objects that I stashed once upon a time, thinking that they might become useful on just an occasion such as this. I grabbed the nearest thing (an old deli container that once held fruit) and cast the leftover mix as a trough.
I'd always figured that this trough was too small to grow plants. Wrong. The semps are happy as can be. And we have a centerpiece for our outdoor table. I'd bet that I look at this group of plants more than any other in my garden, just because they are in front of my nose when I sit outside with coffee.