My Twilight Sparkle throw pillow arrived! Click on images for larger size.
I heard about these here on Equestria Daily.
The tag claims 14" x 14", but it measures 320mm H x 350mm W (12.5" x 13.5").
And, unlike the plushies, these are machine-washable - it always annoyed me that stuffies/plushies aren't washable since they get rather gross after dragging them around with you everywhere.