Does anybody know where I could find a replacement for my zippo lighter's fill flap?

I accidentally set fire to my entire zippo lighter, and the little cloth flap that you lift in order to refill it with lighter fluid (on the bottom of the zippo, says "lift to fill" and has a small hole in the middle of it) caught fire, and now its all burnt and falling apart, I just need to know where I could possibly find a replacement flap for it without buying a new zippo just for the flap. I can't seem to find JUST the flap anywhere I look, all I find is brand new zippos, and replacement flints and wicks. If anybody needs clarification, let me know. Well, if somebody could help me with this, I'd appreciate it, Thanks.