I used names that I see a lot in my age group. I'm sure you'll be able to tell what decade I'm from. Maybe...
LN: Falkenrath, Acker, Rakes, Wakefield, Hackett, Cadwallader, Necchi
MN: Fairchild, Acheson, Ramos, Waldvogel, Hadaway, Callaghan, Nazario
DH: FN: Christopher, Zachary, Brandon, Ryan, Nicholas MN: Jesse, Tyler, Kyle, Kevin, Timothy
DW: FN: Jessica, Taylor, Abigail, Victoria, Jennifer MN: Rachel, Hailey, Julia, Catherine, Maria
DD/DD: FN: Amanda, Natalie, Monica, Valerie, Hannah MN: Brittany, Lindsay, Shannon, Kathleen, Christine / FN: Karen, Alexandra, Rebecca, Brenda, Katie MN: Patricia, Tiffany, Allison, Stephanie, Ashley
DS: FN: Adam, Cody, Aaron, Jordan, Sean MN: Travis, Nathan, Jason, Dustin, Dylan
DS: FN: Ronald, Andrew, Matthew, Austin, Daniel MN: Justin, Benjamin, Jeremy, Scott, Anthony
DS: FN: Kenneth, Paul, Joseph, Derek, Michael MN: David, James, Joshua, Thomas, Nicholas
DD: FN: Megan, Lauren, Courtney, Amber, Sarah MN: Michelle, Kimberley, Heather, Chelsea, Melissa