"a good supply of pipe-weed (but not near enough, I’ll warrant); flint and tinder"

Pipe-weed is another name for tobacco. Tolkien did not want to use the word tobacco because he felt that it would not fit properly into his setting. Tobacco is a Spanish word with probable Caribbean roots.

Flint and tinder are used to create fire. A piece of flint is struck against steel to create a spark, which will light the tinder. Watch this video to see flint and tinder being used to start a fire: