I have a 1 foot tall purple foil tree. I bought silver Jingle Bells, white lights, and a Sparkly Silver Tree Topper.
Now, I'm going to order Cupcake ornaments from Urban Outfitters to finish it off. I'll have to take pictures when I'm done.
My family's tree has 0 colour scheme-- whatever's in the box, is on the tree. To some degree I love it because it shows off all of our great stuff, but I'm a Christmas nerd, so what I want eventually is to have a small tree for my kid's school ornaments and crafty things, that is displayed where EVERYONE can see it, and then a large tree that is decorated with a certain colour scheme or theme (all vintage ornaments, or something like that).
When I was in my first two years of university, I had a black Christmas tree, about 1 foot tall, and we changed the decorations to match the season each month... We usually used coloured bulbs for each month, but during finals season we decorated it in Taco Bell sauces (since we were ALWAYS at Taco Bell during finals studying!) and at Halloween it was always decorated in whatever candy we had lying around!