Everyone always has a hard time figuring out what to buy for me and I don't make it very easy. I don't want for much and my typical answer when asked what I want is "I don't need anything." Sorry about that, to make up for my difficulty I've spent some time and put together a couple of wish lists of things I would love to have. I realize some items on the list are pretty expensive I promise I haven't lost my mind! It's a wish list and I wish I had those things, I am very aware that no-one would ever buy them for me.
Geeky stuff:
http://www.thinkgeek.com/brain/gimme.cgi?wid=81cdc8087
Other stuff:
https://www.amazon.com/gp/registry/wishlist/16QU4AGV1YC0O
I hope these help, there are some trends in there for sure, I love Blu-Ray movies any decent movie in Blu-Ray is a sure winner with me. I am also a huge fan of interesting/unique desk clocks. Another winner with me is just about any kind of tool, I love tools. The one thing I have liked for quite a few years but I didn't put on the wish lists is Coca-Cola trinkets. From antique bottles to puzzles I love coke stuff, I found a renewed interest after a trip to the Coca-Cola museum with Bianca earlier this year, what a cool place!
Hope this helps, happy holidays!