First, You need to collect sand from the beach you have visited. I chose to put it in a plastic sand which bag that seals. Then, I was able to easily store it in my suitcase and not worry about getting sand everywhere!
When that is accomplished, all you need is paint for glass/plastic or both. Then, paint the words or design on the ornament. I put the name of the city where we took our trip, the amount of years we have been married, the year, and a palm tree.