Go to Lowes, in the woodworking / screws section they have some drawers that have plastic plugs you can use. I don't remember off hand the sizes needed so you'll have to measure before purchasing.
It'll run you as much as a dollar for a pack of them, and then you'll just need some black glossy paint and some clearcoat. Doesn't take very long to complete and looks pretty sweet!
I haven't done it on my 2002, but deleted my spoiler for a while with my 99.