Toronto's Royal Ontario Museum has travelling planetariums for rent

Yoga under the stars? Dinner under the stars? Cocktails under the stars… Oh, the things we could do with a planetarium for a day!
As it turns out the Royal Ontario Museum has two travelling planetariums for rent: a giant dome with a diameter of 27′ and height of 14′ can fit up to 50 people, while a standard dome with a diameter of 21′ and height of 11′ can fit up to 25 people.

The Royal Ontario Museum’s Travelling Planetarium
Booking fees for the giant dome start at $1200 per day and are available with a Teacher-Assisted Program, meaning the ROM will send an astronomy teacher to sherpa you through the night sky.
Meanwhile, the basic rental for the standard dome start at $1200 per week and includes a presenter’s guide.

Royal Ontario Museum
Alas, these giant inflatable venues are being billed as an educational tool towards schools, scouts, libraries, and community centres, so you’ll have to find a credible excuse to throw your own planetarium pop-up.