I believe they're just for decoration, no need to associate them with witchcraft or anything like that. I almost bought one that was made of bronze metal for our house when I was at a decor shop, but I decided against it because it reminds me of Christmas and I don't want people to think that we're celebrating Christmas throughout the year.
Joel de Leon
under care - Christ Presbyterian Church, OPC
"To doubt God’s mercy because our faith is feeble, is rather to rely upon our faith than upon the Lord. It is not the excellency and great measure of faith that makes us righteous before God, but Christ whom faith does receive and apprehend: which a weak faith can do as well as the strongest.” - John Ball (Puritan)