i got one from my sister last christmas, and i LOVED it. at the time though, i didn't have money to go buy any more, so i have only the one. i just purchased one from someone here on specktra
so i'd suggest trying the sales/wants threads here. maybe post asking if anyone has any they'd be willing to sell.
flirt! also has glitter liners, but there's only 4 or 5 colours i think. and i think flirt! is only sold in the us, so if you're in the states you can probably pick up some of those to hold you over
caboodles has glitter liners as well and they seem to work like a dream for me. they're cheap and they have a few different colours. there's a really pretty rainbow one, definately worth a try
the only other thing i could suggest is to stay away from the milani glitter liners!! they're gorgeous, but they flake terribly