This one looks interesting to me: Lava, on the MedMama menu. I'm going to order some. Here's the information that sold me, about the genetics:
"African Purple(male), Old pure indica from the legal days, and an exclusive Hawaiian female from my dear friend that has grown it for close to 20 years.
The African was a landrace seed set and dark purple flowers.
Developed for the Hawaiian market, Lava has a rich taste of fine leathers and spices and is very unique in both effect and bag appeal. Pure purple and exotic looking, Lava can grow big and is mainly sativa dom. The purple colors come through at any temp. Moderate THC levels but with a unique THC footprint that you can feel the difference of from other pot.
Lava is a clone only plant."
Admittedly there's no purple color coming through in that picture. Unlike some of the strains that get called out as "rare" in the description, this one actually seems rare!