If you want to make your own milk kefir (a fermented drink kinda similar to yogurt), all you need are milk, and kefir grains. I am happy to give you some of the latter, if you come pick them up from Dublin 7 (between Capel St and Smithfield). Can show you the ropes, too.
If you happen to have some water kefir grains, kombucha starter or something along those lines to share, I wouldn't say no!
Used envelopes, boxes & packing materials for posting goods. Can just paste sticker over old address. Includes: 5 X boxes, lots of bubble wrap large & small and card packaging, 2 X padded A3 envelopes, 5 X padded envelopes size 2 / 170x245mm approx and 2 X smaller padded envelopes.