Here's an easy gift idea (or easy decorating idea!) If you live near a lake or river it makes it even easier I suppose--for finding stones at least! We had lots of fun looking.
For our name wall hanging we just found a piece of driftwood that was pretty flat (easy after all the flooding this year!) and rocks which would spell out our last name, and glued them on with wood glue, added hooks and a ribbon, and hung it on the wall!
We've made these for a wedding gift, and will be making more for Christmas gifts as well!