Hand Signed Mariel Zagunis 11x17 Poster. Mariel Zagunis is a two-time Olympic Gold medalist. Mariel has won just about every competition possible in the world of fencing and is currently ranked as the number 1 fencer in the world. In August of 2010, The US Olympic Committee named Mariel one of the Top 12 Athletes to Watch at the London Olympics, calling for a gold medal three-peat. Mariel intends to deliver.