If your sons wife is not to proud to accept the hand me downs, the yes by all means. If the clothing is still in good condition and in fashion (Some kids are fussy). I am sure that she would only be to pleased to accept them.
== == It depends, really. If your son is a baby and you've got white baby-grows and bibs, then that's ok. But if he's older, then it's a big "No-no."
I would imagine so.
Uncle or Auntie.
Your sister's son is your nephew and you are his aunt (if you are female) or his uncle (if you are male.
Your sister's son is your nephew.
No, making your son wear his sisters pants is not a good punishment.
Cousin
He is your cousin
nephew
Our cousins are our mothers sisters son :)
No, Robin Thicke's son Julian does not have Down syndrome and was not born with any mental or physical disabilities.
Your sister's daughter's son would be your grandnephew.