The Goldilocks zone

No, nearly, yes.

I don't know why the one on the left just didn't work, whether it was just because the yarn was slightly thicker. Or the colour was off - it's a beautiful blue but just didn't look right on the wreath, hence my debating whether to include them at all.

The middle one, the yarn is finer and is probably pure wool with a slight lustre, so maybe that's why it looks better, but the stem was wrong.

The one on the right is fine and I'm just going to go and knit another few stems. I also incorporated a stretchy bind-off which lets the bell flare out a little more. I just came upstairs to find yellow beads for my blackbird's eyes. I hope he'll fit on the wreath, or maybe even hang in the centre. He's turned out very well.