I've made my own self-watering containers. Fun, but a bit time-consuming.
Most self-watering containers that are for sale are a bit pricey for me... I'd really want at least a half a dozen, and at $30 or so each, this is a strain.
So... anything that you can buy in the $12 and under range that will serve the purpose? I think ideally it would NOT be marketed as a SWC, but rather something that can be easily adapted for the purpose.
Again, just to be clear ... not looking for the DIY solutions.