I decided to add color to this pair -- just for the fun of it.
People are funny. When I wear them, I either get oohs and ahhs or "those look fun" or I get nothing! I wonder if those that don't say anything notice them and think "OMG! what has she done??". I am of the senior variety, so without understanding the origin or reasoning, this would be an acceptable thought! Or maybe they aren't noticed. I don't care. I enjoy wearing them and they are comfortable.
Try this, it is fun. I used the Sakura Identipens which are permanent and color safe. I have washed a pair of black and white tangled shoes and they come out great. I haven't washed these yet, but don't fear doing so.
I tried to rotate these pictures, but everytime I pasted them here, they returned to this orientation.