Does anyone have any imaginative head-space circles they'd like to share?
I have a lovely meditation circle space in my head which is in a woodland in summer - in a clearing with pretty flowers around the edge of the circle. And it's very very quiet, except for a few birds singing. Bliss.
This is what I immediately think of on the topic:
http://www.jwwaterhouse.com/view.cfm?recordid=111

A favourite.
For myself, I have 3:
1) 'Simba Kuja'. The rolling green hills on the south side of Mt. Kenya (that I have camped on. Up one side and down the other of the mountain). Samba Kuja means "the lion comes".
No sound but the high winds and occasional bird call, high overhead.
Crested cranes make a magical sound - a bit like creaking hinges in the deep-tibetan-bowl range. Or a hawk.
Here - I can meet a riding companion. A giant Lammergeier/bearded vulture.
2) 'Karen'. The back garden that I grew up in. (Karen is a suburb of Nairobi in Kenya, named after Karen Blixen the writer).
The garden was 11 acres, half of it wild. And there were 16 varieties of Eucalyptus in there (might have changed now with the new owners).
When I think of it, I'm there with the sounds of the Eastern Savannah (shame there isn't as "sounds of nature" CD from this particular corner of the world), and I also sometimes hear that song by Wendy Rule "Follow me, I will lead you to your life under the trees - I am Artemis of the Eucalypts...".
Then - when I think of that song, I think of 2 Tarot cards. The Moon from both The Tarot of the Night, and Secret Tarot - link below.
3) My Temple has no name, and can move about Tardis-like (outer space is fun

).
It has 7 floors decorated in 7 specific colours (7 etc.significance).
The ground floor wood-carved-doors have a cipher lock, (I've decided the wood is Ebony - now rare in Africa) in the shape of the tattoo on my right shoulder. And that tattoo - is the centre of the mandala that I painted in contemplation of my patron Deity.
It has a basement of growing crystals, like this one in Mexico:
https://en.wikipedia.org/wiki/Cave_of_the_Crystals
(I can also blame the influence of Kal-El/Superman for dreams about crystal caves.

).
BTW, Its perfectly valid IMO to adapt with what you have.
Even an RC priest can do ceremonies, in the field with his 'travelling kit'. I have also seen small scale renditions of Buddhist tools...

Yes. I have some.
So much can be learned from the 'long route' though; one can even purchase a magical dagger that is sufficient for one's use, but to make one is a learning process about many things and conditions 'of nature' ... sometimes, the best part of getting to a destination is the journey.
It's the journey that makes us.
For a sword. I have a suitable belly dancing scimitar.

(I belly danced for a long while - fantasy/fusion. Until my knees decided they didn't like it anymore.)
A friend of mine once offered me the ritual sword her deceased husband had made - it was beautiful - but it was huge.
Too uncomfortable for me to wield. It didn't "fit". He was Wiccan, she was Shamanic.