One was using Pan Pastels, something I have been meaning to try, but don't own so there wouldn't be any chance of me repeating the techniques at home at present.
The other was using mica powders (which I do have) and the "split negative" technique really intrigued me so I plumped for this one.
Firstly you stamp a block with Versamark or Perfect Medium. Our blocks were made using pieces of diecut foam.Then you gently dust your mica powder onto this block image.
Next you ink up a stamp, which ideally overlaps the block shape, also with Versamark or Perfect Medium. You stamp this image on top of the mica block. The ink should remove the mica from the block shape.
Then you carefully dust mica on the overlapping parts of the stamped image. Some of my attempts aren't quite careful enough or the stamp I used wasn't appropriate, but a few were OK.
There was a comment about my candles being for Christmas cards so I had to oblige. Fortunately I found the Christmas paper at club and I added some red glitter glue and the greetings when I got home when I got home.
I salvaged the Sunflower image by drawing over the innerparts with a white pen as they didn't show up enough before.