Anecdote: My sister-in-law has the vinyl cutter. She operated the printer and did the task called "weeding." I transferred the result. Btw, you need both the vinyl itself, which has a liner, and "transfer tape." I used 3M lint roller sheets for the transfer.
Back to the story: She advised I go to the local hobby shop, the best one in our region, Hobby Hangar in Chantilly VA, to purchase vinyl sheets suitable for the vinyl cutter machine. She had purchased them many times. So I went to the hobby shop.
I asked the hobby shop manager, as well as other employees, where the vinyl for the vinyl cutter was kept. Myself, I also worked at a hobby shop about seven years or so. However, none of us could put two and two together. So I bought vinyl at the craft store, AC Moore or Michaels in my region.
When we finally got together to execute the project, which took about one hour per logo, with the design done in advance, she showed me the vinyl from the hobby shop. MonoKote trim sheets. They had them all along, and I had a supply at home.
Peter