The place with the rainbow banners, shed with a purple door, and metal yard statue in my previous posts is:

a glass-blowing studio in Dresden, ME. We drove by it on our way home from our botanical garden trip a few weeks ago, and I had to stop because I have a thing for glass blowing. I think all your guesses were more interesting, though: a wizard school :-D, a church, a retreat center, etc.
I didn't buy anything, but I liked this stuff in this first photo:


There was a pretty eclectic mix of stuff in different styles. I just googled them, and it's a husband-and-wife team (and her dad is a pro photographer--side note for us shutterbugs).

The things that look like Slinkies? $180. You can buy them on Etsy (TandemGlass.etsy.com)


Although most of the stuff wasn't my style, I thought it was cool and funky. Seriously not a fan of the mushrooms though.


And one of the lovely flowers outside the studio: