Rawhead and bloody bones

When Bloom is walking to Davy Byrne's pub and thinking along the meat-is-murder lines, the phrase "Rawhead and bloody bones" pops into his head (8.726). Ulysses Annotated notes that this is a "nightmare figure out of Irish folklore invoked to frighten children into obedience" (179). Here he is in the flesh, peeking out of a cabinet:

http://mywebpages.comcast.net/scottandrewh/bb.html

Seems like it might make a good Halloween costume.