My mom and I are planning a surprise 50th birthday party for my dad. He has a good sense of humor but doesn't like being made fun of, so a roast or "Over the Hill" party wouldn't be appropriate or enjoyed.
Basically what I'm looking for are good themes that we can use. My dad enjoys woodworking and is very proud of his Irish heritage, so ways to use either of these ideas would be great! TIA for any help at all that you can provide!