This house looking like a hard boiled egg is made by the Belgian architectural firm "dmvA". It was actually meant to be a an extension for the "Xfactoragencies" office, but was rejected several times by local building regulations, so instead "dmvA" made a mobile office that didn't look anything like the old "Xfactoragencies" offices.
How it's made:
The whole "egg house" is made of polyester, and it took 18 months to build it. Inside you can find a bathroom, a kitchen, interior lighting, a bed and several niches for storage, and like that wasn't enough the nose can be opened automatically and is serving as a kind of porch. It can also be used as an office, guestroom or garden house