How to get Hard Hat and Tatoos

I remembered a discussion about the hard hat was a bug (?) 
But the tattos come from what ?
If I buy, i'm sure they never come back in the shop?

This subforum is for help with development.
We are having a discussion on this topic here: https://sbox.game/f/general/941/1
Currently the market speculators are against them coming back even as different item ids.