You might be able to find a refurbished version of it in December, but you probably won't be able to buy it new unless you don't mind paying way more than it's actually worth.
Decals are a really good option if you're not able to get the limited edition console. There are already decals on Etsy that look exactly like the limited edition console, but the options are pretty much endless.
(here are some examples i found on google)
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(this second one is a photoshop i think, but you could totally do something like this with decals)
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If you don't want vinyl covers you could also replace the actual shell (if you feel comfortable taking your joycons apart, there are youtube videos on it, but it's obviously a bit risky)
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And of course there are also Etsy sellers that sell controllers with custom skins (though these are a loooott pricier than the usual controller/joycon)
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Anyway I know the last bit probably doesn't answer your question but I wanted to show you other options in case you are not aware of them. Good luck!