Oh, oh...I am also using your website words for my high school class.  Once a week I pass out 10 of your sign descriptions (your test) so the students and the staff can try to determine the sign.  It's a good reading exercise for the students and good practice for the interpreters.  Interesting, that while the "deafer" students know the signs better, the "hearer" students get more correct.  It's a reading thing.  "Butt of the left hand" on number 9 got some.  They thought the sign must be "dog" because you slapped your butt when you sign "dog".  [Editor's note:  I do NOT slap my butt when signing "DOG."  I snap my fingers and/or slap my thigh.  heh]So, we learned what the butt of the hand is.  Also...number 6...most of us put "chew" instead of "wash".  Is there a difference?