If you are out of Zippo flints and also own an empty BIC lighter you migth get BIC’s flint to use it in your Zippo.

Works better when you are very desperated. I encourage people to only use Zippo-like materials, such as flints, wicks and fuel, using BIC flint is a quick hack and should be used in a emergency case not always.

By the way, am still missing some wicks, may buy them this weekend.