I have a couple of King Cage Iris cages waiting to go on my next bike when I finally get it built up. A hair under 50 grams so not terribly heavy, $17 so a little bit more expensive than merlin's aluminum, stainless steel to satisfy my retro grouch needs, and oh so pretty for my vanity.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"