Sawdust gathered from a wonderful wood sign crafter locally.
Soy wax from my personal crafting stash.
And the joy of smashing it in an ice cube tray.
These guys take a little bit to light, so not Match worthy, but a pocket lighter should work fine. Once lit, they stay lit for a good 20+ minutes. Even manage to film one burning for a whole 19 minutes, so it would be a great for the indoor fireplace.