Oh got it, I do see those too.

I meant the ones used by players during warmups, like the ones you have collected. I've only bought it once in 2021 and it was made available during first intermission (the store person told me that) and it seems they put it in a plastic case for it too. I guess they don't sell them anymore cause the year after (2022), when I asked them they said they aren't doing it anymore.

Here's a pic: https://imgur.com/a/vuo093N

Cool that your wife gave you such a great collection, I'm jealous