Ask Engadget: What do you do with your old gadgets?

You ask Engadget, Engadget answers (or its readers do, anyway).
Last Thursday Dan D. asked what people's fav mobile apps were. This week, in the spirit of our latest baby, Hack A Day, Engadget reader Alex asks:

"As I've upgrade my stuff over the years, I'm left with gadgets that I don't use but that are still fully
functional. What do you do with them when you're too attached to toss them or give them away?"

We've got a lot of gadgets in our closet (we kicked out all the skeletons when there just wasn't any room left), but we mostly give them to our mad-scientist Philip Torrone to hack. Anyone out there using their old gear for any interesting projects?