Handmade Formicarium from FOURMIS.FR
France seems to have a healthy appetite for quality custom made formicariums. Above is another example from FOURMIS.FR.
This all in one formicarium, sized at 14cm3, which started life off as a Marina Betta aquarium, would fit right in in most modern settings.
Hydration is taken care of via a reservoir at the bottom of the formicarium that can be filled remotely.
Both the lid and stone nest/outworld are removable so you can perform your maintenance with ease. The entire formicarium can even be wall mounted should you so please.
Be sure to check them out here for more information. From 59,99€.