I'm sure I have, but I usually see cross necklaces.@questdriven :I had a small wooden cross necklace. For me, it was like a reminder that helped me to keep my mind in the right places. Kinda like tying a string on your finger to remember something. I don't see how that could be wrong, unless it becomes an object of worship.
Both of the main churches I've attended in my lifetime have three crosses out in the front, my childhood church and my current church. My current church also has a wooden fish symbol on the wall inside the sanctuary.
My dad never approved of the cross or fish symbol, but I couldn't find anything in the Bible about it.
Have you seen jewelry, too, of the Christian fish symbol?
The fish symbol, though not as widespread as the cross symbol, is very common, in various mediums, anyway.
It makes for a good explanation to people who ask about it.
Blessings.
My dad used to dislike the fish symbol for some reason. I think he said he had something to go with pagan gods or something. There's one thing I disagree with him on, anyway. IMO, the symbol is what you make of it. If it represents Jesus' miracle when He said the five thousand to you, then that's what it represents to you.
Unless it's associated with gods that are currently worshiped or you could be mistaken as part of another religion for using it today, I don't see the problem.