Mike, a roll of Parafilm M last a long time. I usually get it on line. I have seen some called Parafilm that Is not what I use, The one I use is 2 inches wide and is a continuous roll and has a backing that you need to peel off. I usually cut it in one inch strips any length I need. I think my last roll was from Ebay.
The issue of the bud wood. Quick answer I don't know. I have never done it that way.
When I get bud wood or send bud wood is usually the 3-4 inches piece, with buds.
When I get them, I have stored them in the refrigerator vegetable drawer in a moist paper towel in a zip lock bag. I had grafted bud wood that has been stored in refrigerator for 6 weeks with success. Please let us know what success do you have with the branch in water method.
The issue of the bud wood. Quick answer I don't know. I have never done it that way.
When I get bud wood or send bud wood is usually the 3-4 inches piece, with buds.
When I get them, I have stored them in the refrigerator vegetable drawer in a moist paper towel in a zip lock bag. I had grafted bud wood that has been stored in refrigerator for 6 weeks with success. Please let us know what success do you have with the branch in water method.