The one on the left is reminiscent of a haggis... as you can see, the one at the right is not terribly well wrapped... I'm not the tidiest of workers... My intention had been to take a photograph, and then leave them a bit longer; and then I spotted the mould. Reader, I panicked. So... I unwrapped them, and they are currently drying off. The one on the left is silk, the other one is cotton, and the difference is clear.
Here is a close up of the silk... the dark flecks are tea leaves, still hanging on; they will brush off when it's dry (I hope!).
The variety of colour isn't really showing well in a photograph; I'm quite pleased with it, though, and think it will make an interesting little quilted piece. There are reddish sections where there were red onion skins, but they show much better on the cotton (there were more of them in this bundle);
There is much more overall colour on the silk piece, but it was much smaller than the cotton. I think I have a lot to learn about this particular process, but I'm happy enough with my first attempt...watch this space to see what I (eventually) do with it. It is a slow process; it will have to sit for a couple of weeks before it is rinsed, and then I will be able to do something with it.
Now to try ivy...