The Garden Igloo Kit. in a few different versions. could be a greenhouse +/or alternative to tent accommodations to house a few more summer retreatants. not particularly cost effective though, in my humble view.
Kagome is a special weaving technique as well as a Japanese children's song. It's also the name of a children's sand pit in the outdoor playing area of the Vienna MuseumsQuartier. The sandpit created last summer is enclosed by planted willow cuttings