Basically, I'm curious to know what a bitcoin or any cryptocurrency unit looks like in real life.
I guess that you've managed to miss the part telling that Bitcoin is a
virtual currency. It has no tangible form.
It's somehow similar to your money as long as you use it only in bank transfers and credit card, no ATM, not paper bills.
Or it's somehow similar with a thought or idea. Or, somehow similar to the music at the radio.
You can use software to find out how much you own, but it has no physical shape.