[markem]

Go to the grocery store and buy unflavored pectin. Should be in the canning section or maybe with the gelatin. Go to the cosmetics area and buy a selection of very small brushes, if they have one; otherwise get something that looks about the right size to paint the crack in the cigar. It won't be big.

Go home and put about a teaspoon of distilled water in to a clean plate (I use a small saucer). Slowing sprinkle a little pectin in to the water and mix it well with the brush. When if gets a glue-like consistency, but not thick, you are ready.

The next part is all about touch and is hard to explain in writing. You need to use the pectin mixture as a glue for the wrapper. If you use too much or the mixture is too runny, well, kiss that cigar goodbye, but it was a learning experience. Too dry and you just have to add a drop or two of water to the mixture to thin it out.

You may just need to paint over the crack or daub under the wrapper a bit to make it stick first. A very light coat and wait for it to mostly dry. If it still looks fragile, you can put on more. Repeat until it looks like it will hold, but don't overdo it. You can repair while smoking if necessary.

Some people here make and market the cigar glue. I have used some of theirs and it works well, but I don't recall their usernames. You may also be able to find it at a cigar shop, but I have never bought from a shop so can't speak to how well it works.