Polish Design Season: to kick off our month-long celebration of the best architecture and design in Poland in collaboration with Polska! Year, here's a roundup of our most popular stories about Polish design to date.

Moomoo architects provoked debate among readers with their I House, clad entirely in black plastic with a wall obscuring views from inside. Sylvain suggests it would make an ideal countryside retreat for Batman.

S - Chair Transformers are polyethylene foam cover that transforms solid chairs into comfy armchairs, created by Warsaw designers Beton.

This tiled family house by architects Pracownia Architektury Głowacki is based on post-war farm buildings typical of the area near Wroclaw.

Oskar Zieta's Plopp stool (above and top) for danish brand Hay is made of two sheets of metal, welded together following the outline of the stool then filled with fluid under pressure.

Hanna Kokczyńska, Jacek Majewski and Michał Gratkowski of Super Super designed a low-budget clothes shop called Fumo in Warsaw using cheap materials from a builders’ merchant.

More from Warsaw studio Beton with their shingle-clad church made entirely of wood (above and top image).

.ORI sto by Jakub Piotr Kalinowski is a folded-metal stool inspired by origami.

And finally, here is the planned Polish pavilion at Expo 2010 in Shanghai by architects Wojciech Kakowski, Natalia Paszkowska and Marcin Mostafa.

Follow all our stories about Polish design this month in our special category. More details about Polish Design Season on Dezeen here.