From my Protestant point of view, I don't particularly like to see symbols of Jesus STILL hanging on the cross. My Redemer Lives!
My mom also didn't like any kind of crusifix and wouldn't even have an empty cross in the house. She likened it to keeping a pistor or a knife on the mantel to remind you that a brother, father, etc had been killed by that instrument.
I don't see it that way. An empty cross reminds me that my Saviour died for ME... as well as the world. I accept that sacrifice because if I don't, it's like denying the fact that I'm saved.
If a representation of Christ's empty grave was readily available, I'd surely have one in some context/medium. But I can admit I haven't looked for one.
Ultimately, like Perna said, it's what YOU think, what YOUR conscience dictates to YOU.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.