Dental training mannequin.
https://diqn32j8nouaz.cloudfront.net...n_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...423#post173577
https://www.homemadetools.net/forum/...129#post160998
https://www.homemadetools.net/forum/...846#post152488
https://www.homemadetools.net/forum/...651#post147651
https://www.homemadetools.net/forum/...264#post116146
