This Christmas, don't go with that ho-hum, run-of-the-tree-farm tree your family always gets year after year. Try something new and unusual.... Like these 10 strange Christmas trees, for instance:

Upside Down Christmas Tree

The upside of this upside-down 7-foot pre-lit Christmas tree is that you'll have more room for presents underneath! This strange tree was originally designed for specialty stores to display ornaments while using as little floor space as possible.

It's $600 and is currently sold out at Hammacher Schlemmer: http://www.hammacher.com/publish/72376.asp?source=CJ&cm_ven=CJ&cm_pla=1492714&cm_ite=The%2B7-Foot%2BUpside-Down%2BPre-Lit%2BChristmas%2BTree&cm_cat=1414665

Whoville Christmas Tree

In Dr. Seuss' How the Grinch Stole Christmas!, the Grinch may have realized that Christmas doesn't come from a store, but in this case, the Whoville desktop Christmas tree does come from one! Link

Charlie Brown's Pathetic Christmas Tree

Good Grief! If Cindy Lou's Whoville Christmas tree above wasn't sad enough, maybe you'll like this one: Charlie Brown's Pathetic Christmas Tree as featured in Charles Schulz' excellent comic strip Peanut.... This tree needs you!

Afterall, Linus van Pelt did say "It's not a bad little tree. All it needs is a little love." Link

Mountain Dew Christmas Tree

It's probably too late for you to start doing this one: the awesome Mountain Dew Christmas Tree. It took about 3 months of soda drinking (approximately 400 cans of Mountain Dew) and 4 days of building. http://mdewtree.com/ (with video clip)

Grolsch Beer Christmas Tree

Mountain Dew? Weaklings... Try Grolsch beer instead: http://www.unboundedition.com/content/view/3513/

Knitted Christmas Tree

If you're into knitting and crafts, why not knit yourself a Christmas tree? Like this big one done by about 1,000 knitters at Eden Project: Link (scroll down)

The Shelf Tree

Don't want to bother with shedding pine needles or the hassle of putting together an artificial Christmas tree? You can make one out of books and magazines like this Shelf Tree by Frank Visser of IJM [Flash] instead.

World's Most Expensive Christmas Tree

Last year, Singapore jeweler Soo Kee Jewellery created this Christmas tree with 21,798 diamonds totaling 913 carats and 3,762 crystal beads. The tree looked like (and was actually worth) a million bucks! Link

Giant Christmas Tree

This is the mother of all Christmas trees: a gigantic 7-story "tree" made from 350 regular-sized artificial trees! Approximately 70 staffers of Yilong Media company of China constructed a steel framing and then stacked this pyramid of Christmas trees. Link

Festivus Pole

Not celebrating Christmas? Are you celebrating Festivus [wiki] instead? Then you'll need this Festivus Pole!

In case you don't know anything about Festivus, it's a made up holiday popularized by the TV show Seinfeld. The holiday includes such traditions as the "Airing of Grievances," in which you tell people how they disappointed you over the past year, and the "Feats of Strength," where the head of the household is wrestled to the floor.

The photo is Mark Metcalf ("Maestro" from Seinfeld) standing with his Festivus Pole at his restaurant Libby Montana in Mequon, Wisconsin. More photos here: Link

You can get Festivus Pole from The Wagner Companies here: Link