I have a few projects that have been on my desk for years: a forgeworld avatar, an old-school land raider, some death guard terminators, amongst others. My Dark Angels Army is more than complete, but i usually find something to update or more to paint around the time a tournament comes up. I've also got an embarrassing amount of spinespur minis to paint, as well as some confrontation stuff that ought to get finished at some point, because my color scheme kicks ass.
[item one: Fay Enchantress]
this has been on my desk since february of '05. I originally bought it to paint it up for my then girlfriend for her birthday. Now, she is my ex-wife, so there's quite a bit of emotions tied up in this. my logic for having this half finished on my desk went something to the tune of 'if i don't finish it, we'll be together forever.' Forever, however, disagreed with me. So, at the next viable gift-giving event, i'm giving it to her as a subtle hint that despite how i may feel from time to time, and despite what she might think, there's no going back.