I found the above pictured dome home while searching for the source of a video that has been making the rounds on Facebook.
(I found the source, but it looks like the main product is a building material. I think the circulating video is just a means to illustrate the wall material. Here’s their website: http://www.i-domehouse.com/, based in Japan.)
While searching for that, I found these dome home kits from China. I’m unsure of quality, but if well made, they could be a fun tiny house shell for a moderate climate. They’re listed on Alibaba for under $7,000: https://www.alibaba.com/product-detail/new-type-geodesic-dome-house-replace_60387324126.html
Visit the Global Domes Ltd website for more information.