I did the one with the wedding ring on a thread and it predicted a boy and sure enough we're having a boy! :)
It said girl for me and I am having a girl!!! There are 4 girls I work with that are pregnant and it was right for them too!!
Mine always said boy, girl m/c, boy, boy. Well the first three were right. But once I got pregnant this fourth time it changed to be girl. Got confirmation yesterday and we are having a GIRL.