You may find the 10g monofilaments at: pedicare.ca
A great site for all the foot care instruments and monofilaments. They have them available in the individual paper ones and an excellent one from Bailey instruments, made in the UK.
Hope this helps.
You can go to http://www.hrsa.gov/leap/ and look on the right of the page and can order packages of 10 free of charge. Each monofilament has a little place where you hold it and it has the diagragm on it. Plus this site has a wealth of information and even some free CEU online classes. The 10g is the one used for the average protective sensation screening.
Hope this helps!