Would the ground mince meat mixture you make fall off of wooden/bamboo skewers/lollipop sticks in the same way?
Perhaps you could 'roughen up' your skewers by caramelising some sugar onto them first and then press the meat around them?
Here are some photos of tsukune yakitori (with chicken rather than turkey)
http://www.google.com/search?q=%23+%...w=1024&bih=858
Not much metal to be found there