The PamBee's look nice. Have to think about that.
I do know a couple FTers who took the F-class blankets from LH (not on my flight). Blankets had an interesting design on them, but hey they're still airplane blankets. I wouldn't have bothered. Also I would have felt uncomfortable walking by the F-class attendants with them under my arm. They said the FAs didn't say anything (although I'm sure they thought something

).
Cheers.