Doug, if you are married, you are probably wearing a wedding ring. That was a pagan invention and a pagan practice. Does the Bible tell you to wear a wedding ring?
Sure I wear a wedding ring. The bible doesn't prohibit it. In fact, the parable of the prodigal son involved the placing of a ring on the hand of the son when he returned. This could be taken to represent the marriage of the church to Christ:
Luk 15:21 "And the son said to him, 'Father, I have sinned against heaven and in your sight; I am no longer worthy to be called your son.'
Luk 15:22 "But the father said to his slaves, 'Quickly bring out the best robe and put it on him, and put a ring on his hand and sandals on his feet;
Luk 15:23 and bring the fattened calf, kill it, and let us eat and celebrate;
Luk 15:24 for this son of mine was dead and has come to life again; he was lost and has been found.' And they began to celebrate.
Halloween is an entirely different matter though. It is supplanting God's true holy days and replacing them with false days dedicated to false gods.