Introduction
In our today world, promotion2. Our physical items
This is also a superb way of raising the curiosity of a none Bitcoin ethusiast. When Items like shirts, cups, stickers, etc contains Bitcoin logo, and it's present in major parts of your house/environment, it would certainly raise questions from the people around. Sometimes, it might happen that the none Bitcoin ethusiast isn't the social type, but when he/she continues to see something that isn't familiar, then curiosity is certain.
I actually agree with an idea like this, but at the time.
And for now it seems like this idea has risks for those who use it, because currently everyone, all criminals and all groups know about Bitcoin, and also know that Bitcoin is very valuable or you could say digital gold. And bad people, even not bad people, can become bad when they see a Bitcoin symbol or picture somewhere or something that someone is using because they will think you have a lot of Bitcoins and they want to commit a crime by taking your Bitcoins. And maybe by kidnapping just to get a private wallet or other means, just to get Bitcoin.
So in my opinion, something like that is best avoided even though it is a great way to introduce Bitcoin, but for security and convenience it is best not to do it.