I love immersion dyeing fibre but it seems to be a pretty rare technique. Common for yarn, just not fibre. Admittedly I only do it with Superwash because the process is pretty prone to felting.
For todays top I went on a search for immersion dyed fibre and came up with, kinda unsurprisingly, this:
American Silk Sheep from LightBrownHare:
Youtube video on the technique...oh, and her awesome hand dyed yarns.