Ice cream hounds, all you need to do is invest in this. Sometimes the warehouse stores carry them for around $35.
Basic delicious ice cream recipe is cream, milk, sugar, vanilla. You can certainly play with recipes using Primal ingredients - maybe substituting something for the sugar, or reducing the amount of sugar but allowing some as a "cheat."
I made a crazy honkin' good ice cream last month with rhubarb from my garden that I simmered into a compote with a sprig of rosemary (removed when the rhubarb was added into the liquid base, using heavy cream and goat's milk. Sounds weird, but it was eyeball rolling good. Basically, whatever crazy experiment you do, the result will be better in terms of ingredients (if not flavor) than 99.9999% of ice cream you can buy.