Not only am I Italian, I'm also Irish. My Irish grandmother used to keep us in stitches with the superstitions (and she actually believed them!)
"Fork on the floor, man at the door."
"When visiting, always leave by the same door that you entered."
"If you have a statue of an elephant (or picture too, I would imagine), always have the trunk facing your front door...brings money."
"If your right palm itches, you'll receive money...if you left palm itches, you'll lose money."
"If your nose itches, someone wants to kiss you."
I agree with everyone else...knitting for the baby can't possibly do any harm to him/her. If anything, he/she will feel the love that you're putting into whatever you're knitting. Best of luck to you all.