Plastic fuel door latch/clip

I'm looking for a place that sells the little black plastic latch/clip that keeps the fuel door closed on my '03 Disco. I had to get one replaced at the dealer under warranty but would like to have a few for the next time the wife breaks one. The dealer is 60 miles away and they wanted US $8.50 each . I figured they would be, at best, a couple bucks but $8.50! A guy at the dealer told me to go online and search for it and I would find it for under half of what they want. I searched but can not find. Any help would be appreciated. Thanks ahead of time.