Wondering if this would work as a mold, or if it'd be too difficult to get the bottom part out of it..
https://www.wayfair.com/outdoo...[/quote]
Based on what I've read (since I have not actually made any yet) I am thinking you could turn the planter upside down and put the hypertufa on the bottom. Then you don't have ridges to get stuck. I THINK anyway. This appears to be the danger of learning about hypertufa. I was eating veggies and dip and found myself eyeing the plastic container (grocery store special) and wondering if it would make a good mold.....
I have a bin in the garage where I am collecting clean plastic containers destined for the trash but stopping along the way for hypertufa possibly.