Looks like a slinky.

launched the filter with defaults, got the following error:
GIMP Error
Calling error for procedure 'gimp-brush-get-pixels':
Procedure 'gimp-brush-get-pixels' has been called with value '(null)' for argument 'name' (#1, type gchararray). This value is out of range.
is my version out of date?
(in spite of the error message the spyrograph is produced)

thanks Graechan

edit: the script window does not accept the click on "browse" for the brush (?)

Where can I find this?
Found it but can't make a frame. Can someone please tell me how it is done?

Graechan, I discovered why (and I put this info here in case somebody else should encounters this strange behaviour):
- if on the tool option the active brush is empty, than the "browse" option does not work
Strange, isn't it?
Whatever is in the active brush EXCEPT EMPTY, everything OK:
-the script does not send an error message (it looks likely to the active brush and in the empty case gives the message I posted)
-when clicking the "browse" buttom you get the selection window
"tutto è bene quel che finisce bene" (Italian motto)

I found it before but every time I try to do a frame it goes over my picture, not around it.

conbagui

Always loved this one. Been a while since i've used t.

using butterflies brush

Did Mine with strawberry brush