An Ounce of Home

Today’s Daily Prompt: An Ounce of Home. You’re embarking on a yearlong round-the-world adventure, and can take only one small object with you to remind you of home. What do you bring along for the trip?

I thought this one would be easy. But I’m running the options around in my head and can’t come up with anything that seems satisfactory. When packing to be away from home, with limited space, how can you choose an item that will do justice to home without causing a burden? Any suggestions? Comments? Ideas?