Want to create an interactable item that I spawn on avatar

Now I think the title is what I am asking to learn. I may be incorrect with the wording as I may or may not have half a brain.
I have seen avatars that can spawn hats and interact with them to place them on their head. I would like to do a similar thing but with some cigarettes I have acquired. Now I should also preface this with I am quite the noob when it comes to creating shit in unity, but I am learning and I want to have a tutorial when the time comes when my brain grows its second half.

I can’t seems to find something like this despite my googling. I may just be asking the wrong things or I may not know some vocab words. Can anyone help me with my conundrum? Or at least point me to a good place to learn this?

Any clue is much appreciated.