This dude actually explains exaxtly how to build one of them, with different size options. Low cost geodesic dome greenhouse kit (Personal Note- figure out a way to camouflage it. Also figure out a way to heat it if necessary.
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.
21 DIY Greenhouses with Great Tutorials: Ultimate collection of THE BEST tutorials on how to build amazing DIY greenhouses, hoop tunnels and cold frames! Lots of inspirations to get you started! - A P (Diy Ideas Outdoor)
Dome of Visions / Kristoffer Tejlgaard + Benny Jepsen
Geodesic Dome Greenhouse - milk jugs right next to the plants in the spring to pick up heat during the day and a garden hose from the water pump around the outside of the greenhouse, right next to the plants. The hose is much warmer than the air at night.
How to make your own functional geodesic dome in your backyard with PVC pipe. Because why wouldn't you want to do that? I see this as a cool, movable chicken run with the right covering over it. Can even build in perches.