From a non-blogging friend, via e-mail:
UPDATE: McClatchy Newspapers report that in the official ceremony swearing-in House members, those taking the oath do not place their hands on anything. It says: "The House speaker administers the oath to members en masse on the floor of the House.... It's up to individual members if they want to hold religious texts.... After the official swearing-in, members often have photos taken at a staged swearing-in ceremony in the speaker's office or their own offices, where they can place their left hands on sacred texts or hold them and have their families or religious leaders present....""
View my first post here