Buy some real flints, not those Cut Agate abortions that T/C sells. Rich Pierce, a member here, sells flints made from Missouri Chert. You can buy English Flints made by the Tom Fuller company from a number of suppliers. Go up the links section on the index and click on it to see a list of suppliers. Click on the names, to get to their catalogs. Do a search for flints. Or simply call the suppliers on their 800 numbers.
Agate is too soft to spark consistently well. I still have some I would love to GIVE away, but can't find any takers. :hmm: :surrender: