I just came across this subtle beauty by Design House Stockholm! It's called the 'Grow' and it's basically a mini greenhouse. It was designed by Caroline Wetterling and she thought of every little detail: the top can be used to water the plant if you turn in upside down and fill it with water -- it has a small pourer. This same pourer functions as a small air valve when on top of the other half, making sure there is perfect ventilation, humidity and temperature inside in your microclimate. Beauty and functionality, just the way I like it! For more Design House Stockholm, read my post dedicated to this fantastic brand :)
I haven't yet found a Dutch supplier, but it's for sale here.