The Staff of the Ovinomancer is sometimes referred to as "Bo Peep" (like in the "customize controls" menu of the game). The name comes from a child's poem called "Bo Peep and her little sheep". (From Lucky Starr, published here).

Alex Fung's Thysis walkthrough has some interesting background info about Egyptian culture. Scroll through the text and read the passages in dark red to see what's the real background of the architecture and objects you encounter in Hexen II's 3rd hub.