"The Black Litany of Nug & Yeb" is an old text of mine from the Book of Eibon. Read by Bob Price, this was released on the STRANGE AEONS cd by Steve Lines...
Also heard it was a bit frightening when Bob read it as part of the Prayer Breakfast at MythosCon :)
Still remember Bob asking me to put on my Dr. Strange cape and whip up some spells for EIBON -- it was great fun! !!