Hidden CAS items

hi! i’ve been having the same problem - the leather jacket you posted appeared on one of my sims and i really wanted to put it on a different sim but i couldn’t find it

i posted a discussion a month or two ago with more suggestions about what it could be on

"Aenmond;d-948847" wrote:
It's been a while since I continue to come across different CAS items which seem to be hidden or are impossible to find unless they appear randomly, in which case they still can't be selected. Here are three of them:

Item nº 1:
https://i.imgur.com/VvEoIpP.png

When my sim grew up, from kid to teenager, he was wearing this Spa-day t-shirt. Is it possible to unlock that clothing somehow? I thought that only the employees at the spa could wear it.

Item nº 2:
https://i.imgur.com/DfJYMiG.png

Another case is this sim created by Maxis, who is wearing gloves which can't be found in the CAS menu. Why weren't they added with Jungle Adventures?

Item nº 3:
https://i.imgur.com/3Nghnm2.png

There's a sim I downloaded from the gallery who's wearing a jacket that's impossible to find unless it shows up randomly, just as I explained at the beginning. What I know is that a very similar jacket was later added in a patch last year.

Apart from that, there is a piece of clothing from Vampires which isn't available in a specific colour. I've always been wondering about it, why is the sim standing beside the Pipe Organ wearing that suit in such colour if it isn't in the game? Could it be that it appears randomly too?
https://i.ebayimg.com/00/s/NjY3WDEyMTg=/z/U~YAAOSwE0ZazT1s/$_57.JPG?set_id=8800005007

What is it with this sort of items? Could it possibly be that some will be added later? Maybe there's a way to unlock them that I didn't know about. What do you think? Has anything similar happened to you?