SWHP: Self Watering Herb Planter

There are a few self watering planters on thingiverse, but they do not fit the herbs I buy in supermarkets! If I want them replanted I have to go and find soil and make a mess of the sink/table.
Also I find the water indicators lacking in functionality (if there are any).

I've tried to create a set (range, if you will) of self watering planters sized to fit herbs plants you buy in stores (in Denmark) with a water gauge to make it easy to water the herbs just right.

I mainly see two sizes;