try your local supermarket

google them to see images just to get a rough idea of what they are.

i googled them in advance. http://2.bp.blogspot.com/-7CJlBD2ZDhA/TbYOjKeJjLI/AAAAAAAAAGo/K2Z9uMfeiZE/s1600/dental+pick+1.jpg (Unsupported image host)