If you don't have anyone you can get a SCOBY from, you can always make your own using just one bottle of store-bought kombucha. Simply make a small batch of sweet tea following the first fermentation ...

Making your own scoby drinks is a satisfying thing to do ... In cream, the grains make a sour cream substitute. To buy scoby cultures, see Christchurch-based eternaldelight.co.nz or ...