you can mix zero nic e-juice, just get some PV or VG or mix and add flavoring 5%-20%
i gotta warn you tho, it doesn't have the throat hit, so if you've grown accustomed to nic...well, then you'd be addicted
Michael's craft stores, walmart wedding cake supplies, and compounding pharmacists carry glycerin. Compounding pharmacists have PG, but may not be willing to dispense it (and charge too much to order).
small quantities of flavorings can be ordered from LorAnn's Candy Oils or e-cig places. i'm expecting some organic mango flavor from nature's flavors soon, and have been vaping on cinnamon red-hots from the perfumer's apprentice.
essential wholesale has the cheapest VG and PG, $20 shipped for 16 oz of each.