Amy Sedaris was on Chelsea Lately » 10/27/08 1:20pm 10/27/08 1:20pm last week and she did a presentation on vaginal cleanliness using a felt vagina model designed by Todd Oldham. Click the picture at left to see the video of Amy dispensing tips on how to entertain the elderly, cut up a butter box to give the Land O'Lakes lady boobs, and of course,…