I want a tattoo!!!! HELP!!!!?

i would like to get a back or side tattoo, that represents my mother, sister, and my daughter. I want something more symbolic but i'm not sure how or where to start. I don't want to tattoo their names or portraits, just something that represents all 3 of them. i was thinking about taking all of thier signs and combine that somehow but i thought that was a little corny and desperate to just do something. a generational tattoo, would be cool too!!!! PLEASE help! all suggestions appreciated: )