Dryer lint makes an excellent firestarter --- ask all the firemen who've put out laundry room fires! Seriously, people do use dryer lint, and if you've got sawdust you've got a great beginning. You can get a cheap supply of paper cups, and pour into those, then you don't have to worry about a mold, burn the cup and all. Just fill your cup with the sawdust/lint/whatever, stick a piece of wick in --- I'm sure you could find something else, but you know it will work --- and pour over with whatever wax --- most people again go cheap here, too. Let harden and you've got firestarters. Velveeta boxes, shoeboxes, pringles cans --- all would would give you a loaf shape. Punch holes in the side of the pringles can to thread wicks in, then just cut up the can when set. If you google handmade firestarters, I'm sure a ton of 'recipes' will come up! HTH!