This Cardassian favorite, was seen at least six times with two different bottles, two different colors on DS9, and four different stoppers prior to the seventh season. In the seventh season, it was regularly seen in Damar's hands prior to his breaking ranks with the Dominion.
The bottle was originally a Chianti wine bottle (Chianti is a type of Italian dry wine which is typically found in reed wrapped bottles). Now it is sometimes possible to find a *VERY* similar copy at import stores. Some are clear, like the ones I located, others are covered with a thin plastic color coat. This color coat, can be identified by carefully scraping the bottom of the bottle, and if color flakes off, you have a clear bottle underneath. Do not use flames to try to burn this coat off, I discovered on another bottle that these cheap, decorative glass bottles won't hold up. You can just try chemical strippers or gently scrape the color off. (This can kill an evening folks)
The Chianti bottles come in 1 foot (old Banfi, and other brands of Chianti bottles), 3 foot (San Carlos, and possibly others), and 6 foot lengths ( who knows which brands, often came with instructions on converting into lamps). Use the 1 foot bottle. The labels are best seen in the book "The Art of Star Trek", and can be photocopied, but for the best appearance it would be best to scan the labels and clean it up using your computers paint program, before printing it and attaching it to the bottle. I found the stopper at Pier One Imports (about $4.00 US), it was actually a pour spout (like the ones found in bars) that was painted a metallic color. I found that I had to spray paint the top of the stopper with a base coat of black (to get an even color), then spray paint it with the final color. I wasn't able to match the color seen in the book, so don't bother to try German Metallic Silver. If you can't find the stopper at Pier One or at a similar import store, you will need to make it.
The contents in the episode "The Maquis, Part II" [DS9] were quite thick, almost syrupy, and dark, black or purple, I suspected Hershey's Chocolate Syrup. The stopper was shaped much like a honeycomb (the old fashioned domed varieties), made from a tan or flesh colored rubbery material with bumps. I suspect some adult product was used.
The contents from the episode "Destiny" [DS9] appear to be a dark purple/black liquid. Grape juice, prune juice, Kool-Aid or some similarly colored drink can be used. The stopper is the same one seen in "The Art of Star Trek".
In the August 1999 issue of "STAR TREK: The Magazine" Paramount property master Joe Longo gave an interview, and stated that the actual kanar recipe was giving Casey Biggs (Damar) sugar overdoses. The old actual recipe was made from karo syrup (corn syrup) which "looks like car oil, and when you pour it it comes out real thick". When it was realized that this massive dose of sugar was causing Casey problems, the recipe was switched to a sugar-free pancake syrup that was thickened. Longo states "the gag was to have the drink so thick it's almost goo, but he's [Biggs] still drinking it". I suspect that Thick-It (a product used for swallowing disorders and found in pharmacies) was the thickening agent.
The contents from the episode "The Way Of The Warrior" [DS9] appears to be a coffee colored drink with lots of creamer.
It made an appearance in the episode "Ties Of Blood And Water" [DS9]. In this episode Kira nurses Tekeny Ghemor, her dying Cardassian "father" from "Second Skin" [DS9]. Unfortunately I don't have this episode, so I don't know the color of the contents, I hope to get it later, in the re-runs. I'm not sure about this, but I think that the stopper in this case is the same as the one used on the bottle of Vulcan Port.
According to Carrie Sager, Cardassian Kanar was also seen in "The Wire" [DS9] (one of her all time favorite episodes), and it was seen to be a light blue, so a recipe for Romulan Ale would work for it, too. I cannot confirm or deny this, for Carrie identified another hole in my taped collection.
In the early part of the fifth season, Quark was seen with a new bottle, of shape and description I have yet to identify...Pending more information
BTW: For you B5 fans:
in the quarters of G'Kar. There is the 3 foot version of the same bottle. Not related to Star Trek, but deserves a mention