Somebody in Cambridgeport is listing an igloo on Airbnb - and at just $10 a night, it's a steal:
This is an igloo.
Yes. It is very cool. Juno made it.
Comfortably fits 1, or 2 if curled up. You can use the house bathroom and kitchen if you need. Tarp and yoga mattress provided. You'll need to bring your sleeping bag.
H/t Andrew Bauer.