Anything that us humans have ever voiced in the history of mankind that satan can use to try to deceive someone can most certainly exist in some form or another.

I believe that fairies do exist for some people because that is what satan's little demon buddy is looking like for them. Others of us may see the same little demon buddy as a leprechan (sp??), ghost, or anything else that our minds have imagined and our tongue has spewed forth for the hearing.