A member recommended this yogurt starter for making
yogurt from non-dairy milks:
http://www.culturesforhealth.com/vegan-yogurt-starter.html
She also recommended using the Instant Pot pressure cooker to speed
the process: http://instantpot.com/
See: http://instantpot.com/benefits/specifications-and-manuals/
She also felt that she had more success using vegan milk sold in aseptic
packaging, than using refrigerated non-dairy milks.
If you try these out, please let us know your experiences with these products.