This fire starter uses old egg cartons, used coffee grounds, used coffee filters, matches, and paraffin wax to make some long burning, energy dense fire starters sure to get any fire going without the fear of singing eyebrows. I suppose any sort of biomass would work in place of the coffee grounds so long as it's flammable. Dryer lint is a great option. I suppose one could try old tea leaves or even old tea bags, but I can't imagine those would smell as good on fire as coffee grounds.
When you want to use these, you just cut off as many as you think you'll need, light them up under your wood pile, and you'll be well upon your way to roasting marshmallows.
These burn for about 15 minutes. Below is a video I took of one burning, but I cut it down to about 2 minutes for the sake of sanity.