What could be the best gift for my sister that includes the traditional as well as the modern wedding anniversary symbols?

My sister and her husband are going to celebrate their 5th wedding anniversary this month, and I was thinking of giving them something really nice for their wedding anniversary gift! I have learnt that the wedding anniversary symbols for 5th wedding anniversary is traditionally wood, but silverware is the modern trend for gift. I wanted to give something exhibiting the 5th wedding anniversary symbol to them but I am not sure what would be the best gift that would include both, the traditional as well as the modern symbol! Can some wedding expert please help?