My kids' school had "Tool Day." What is Tool Day? It's career day with props. They ask parents to bring in the "tools" they use each day and explain what they do.
So, my kids come home begging. "Mom, can you please come?"
"Really, I answer phones."
"PLEASE?"
"I answer phones. Dad's job is much cooler and he has really BIG tools and works with wells."
"PLEASSSSSSSSEEEE?"
So, I went to the Elementary school with my headset, my timer, and my prepaid card they gave me when I started working to tell kids how I answer questions about prepaid cards. The 1st graders thought it was cool that I worked from home. The 3rd graders wanted to know about my crazy calls. The 5th graders wanted to know how to get cards (sorry have to be 18, or 13 if parent's get a secondary card) and how I use typing and texting or IM each day at work.
I'm no Fireman (which I spoke after in my daughter's 3rd grade class) or Life flight Paramedic or Soldier or Pump Rig Operator (like their Dad) but I hope I wasn't a total bore. And I might have even been practical because at one time or another most people in college have worked a call center to make ends meet. They are very flexible with school schedules since they are open long hours.
My kids were smiling and that's all that matters.