Hoping someone can point me in the direction of an online seller of grafting tape and wax in the UK. I am from Ireland but can usually get most things sent over.
Olga is right. Parafilm works. Not sure how much they are selling for 9 pounds there, but you can also check ebay. Parafilm is a major staple in biochemistry laboratories. I suspect the technicians are liberating surplus from the boffins.
I got some tape from Ebay though I have heard of people using cut strips of plastic/freezer bag and it working just fine. Grafting wax I have also seen on there too and but I use a beeswax candle.