I used a piece of an old magazine cover as my base. As I arranged the elements I tacked them down with Elmer's Extra Strength glue stick (it doesn't muck up the sewing machine needle).
Some of the circles are fabric, others are paper.
There are bits of old tags, circles punched from postage stamps and some cut from envelopes. See the piece on the top left with the ribbon? It is the top of a tag that had otherwise gotten damaged. Over on the top right, those animal heads were on postage stamps, I believe from Australia.
The brightly striped circles were cut from paper that was originally an envelope, handmade by a friend who sent me some "stuff." And I do believe that is Queen Elizabeth in the center of one of the circles. (Also from a postage stamp).
I'm sure I've said this before, but I love using things made/sent by my friends in my own art. Even just a scrap of paper or fabric, or a bit of ephemera handed to me at a workshop will make me think of that friend every time I look at the finished piece.