I have a "friend" that just realized how big a mistake giving (and receiving) Precious Metals as gift is. After receiving a $10 Indian head Eagle, a $5 Indian head Eagle, and a $2.50 Indian head Eagle for his birthday - he got to thinking about when the time to sell arrives. The sentimental attachment of the "gift" is probably going to make his selling decision harder. That brought other PM gifts that have been exchanged to mind. He gave his wife a graded set (4 coins each) of gold 2012 and 2000 Perth dragons for her birthdays. She gave him a 1994 gold maple leaf (the year they got married) for their anniversary. These "gifts" are pretty much off the market now. Unless spot hits $5,000, he can't ever see being able to sell them. There have been many other PM gifts, but these alone take about a 5 ounce chunk out of his "investment" hoard.
So, unless your wife is willing to accept a "gift" as a temporary "investment", my "friend" highly recommends you NOT give PMs on sentimental occasions.
I told my friend to take all of those gifts on a fishing trip and ponder his problem. Hopefully his boat is more stable than mine.