Lord of the Rings was the fandom that brought out the serious costumer in me. This past year we finally felt my youngest son was old enough to appreciate the trilogy.
From the first release of the elf's arrow, he was in awe of Legolas. It didn't take him long after Return of the King was over for him to ask if I could make him a costume.
I've made him many, many costumes, but the joy of sharing this fandom with him doesn't really compare.
Build thread: http://www.therpf.com/f24/guris-2012-halloween-costume-contest-entry-her-146178/