Where can I find discontinued Cadillac center caps?

I have a '93 eldorado with the original chrome 7inch center caps with the gold wreath and cadillac crest. I lost one and I am having the hardest time finding one. I have searched most of the obvious internet sites. Please help me! She looks so ugly without it.|||you might try a cadillac dealer or the local junk yard.|||Try looking up Cadillac King on the net.It's a salvage yard deals in Caddy stuff.