Formicariums from Anthouse.es
We've found some pretty tidy little formicariums courtesy of Anthouse.es in Spain.
They specialise in natural dirt/sand setups and are offered at fairly reasonable prices.
Available in acrylic, and a few in glass, they come with the sand/dirt that you see above along with the rocks for decoration.
Featuring 2 connection ports on either side, these formicariums are simple yet stylish.
Starting from around US$38. Check them out here.