Here’s mine:
http://i.imgur.com/77p3l.jpg
It’s been my wallpaper for around 12 years now.
Cool - I have spent a lot of time trying to figure out how to do it. I will try this as soon as I get home today. Thanks!
I use a plain blue background on my laptop, because it’s a tablet and it gets all stretchy and generally isn’t worth it to have a normal background, since I rotate the screen so often.
On my desktop, and other laptop, I use this and this respectively. Although it changes to different space related stuff whenever I sit down in front of them (which isn’t that often).
Right now I have a photo of my Triumph’s motor in the process of being rebuilt. I like to think it’s a bit of an art photo. 
Would a spinoff thread dealing with Windows 95 themes appeal to anybody? If so, I could mention my Blade Runner theme that had this eye at startup and this one at shutdown (or vice versa – I forget.)
I had a saturn pic for a while, then the Windows 7 standard, and just today I switched to this Lego Portal pic.
I don’t think it will last too long, though.
On my cell phone I’ve got this one of the ISS.
I like this. He (?) looks grumpy.
Jupiter. I’m not sure where I got it from but NASA was probably involved.
Er, you probably shouldn’t claim the copyright on it then.
Oops. OK, here’s Jupiter.
Usually one of these. Proper cheap bed and breakfast wallpaper.
Yes, last spring at night while out camping. I kept snapping shots and futzing around with the camera settings until I got some neat pics.
This is mine, currently on all computers I use:
before that it was this one:
Both taken by me… my ears still hurt from the go-around the Vulcan was just about to do!