@coliemore, what are SNES needles? I'm quite confident that you are not referring to Super Nintendo Entertainment System

While we wait for other members to join in, here some information about treatment and self-management of fecal incontinence http://www.mayoclinic.org/diseases-conditions/fecal-incontinence/diagnosis-treatment/treatment/txc-20166903

We also have several videos about this issue. For example
Fecal Incontinence - Heidi Chua, M.D. - Mayo Clinic