I like their waterproof eyeliner pen , it's a dollar.
Target sells their products.
they have eyeliners for $1.00! and im buying some but i've never tried them before. but its only 1 dollar so if you dont like it, its not a big deal. lol.
covergirl has a felt tip applicator eyeliner pen with liquid in it called Line Exact that goes for about six dollars at most drugstores, targets, and walmarts.
i love almay's liquid in black, have been using it for a decade. its at walmart. i choose that one over higher priced ones, i like the ink barrel design.