my mom used to call me "albuno" - short for albino
when I was a baby, she called me "fatsyrump". (self explanatory)
my dad used to call my brother "horsehead" and "loggerhead"
my granny used to call my sister "meechie" and "my little monkey"
I used to call my nephew "Pedro". This would send him into laughing fits and he would exclaim that his name was not Pedro, it was Arny. Then he would usually give me one of his flying hugs that were reserved only for me.