Here is a full model of a hidden blade inspired by the Assassin's Creed series. The harness, which also holds the model together, is available here: http://tinyurl.com/c8rgsgo
Full credit to the man that came up with this design, Ammnra. And to the man that I based my design off of, Brambolo.
32.01 w x
17.886 d x
12.602 w x
7.042 d x