In the latest version of the Eva Solo self watering flower pots (2021), there is no spout on the water reservoir. This makes it a hassle to refill the water. 

Therefore I designed an insert that goes between the top and bottom bit so that you can refill the water without risking dropping the pot, plant, and all your hopes and dreams. It's also an opportunity to add some colour. 

The one I printed is Prusament PETG Chalky Blue.  Prints without support if printed upsidedown.