When we were kids, we called our grandparents Grandma Hunt or Grandma Royal (their last names). But then when my sisters and I started having children, they called their grandparents mamaw and papaw...they called our Grandma Hunt Grandma HooHoo. Now that my oldest daughter has children, they call us MomMom and Pops because that's what my grandson could pronounce...I have to admit, I really love being called MomMom...I didn't want to be a mamaw...because that is my mom and my mil's title
So every one is happy!