I know I'm way ahead of myself here. I'm still a year out and I haven't even solidified a venue yet (going to tour places the weekend after Halloween! I'm so excited - thank you all for your wonderful suggestions, I think every single place I'm going to look at is something you recommended). What can I say? I really like planning things.
SO. I'm a nerd. I've been thinking about decorations. You have to understand that I really, really like fairy tales. In one of my favorites, the characters travel through a forest with trees that first have gold leaves, then have silver leaves, and then have crystal leaves. Ever since I was a little girl, I've thought that was just the most beautiful imagery I had read about. Obviously it's still stuck with me after all these years.

So I thought it might be appropriate to pull inspiration from it!
Apparently wedding centerpiece trees are a thing already! Who knew? I didn't. Although I imagine you all did...
I saw these:
http://hphotos-sjc1.fbcdn.net/hphotos-snc6/224458_225966217446239_221525774556950_626663_3057147_n.jpgAnd I thought maybe instead of dangly things, I could somehow affix artificial leaves I've painted, etc., to get the right look.
Can you rent those tree bases or something like it?
Re: Tree centerpieces?
http://www.simplyelegantwed.com/Vases-Eiffel_Tower.html
I'm sure most rental vendors in the area would have those kind of vases, you may want to try these:
http://www.a1wedding.com/flashintro/
http://www.tlceventrentals.com/
Hope that helps!
I tried looking online for the trees but I'm not quite sure how to phrase my search or what I'm looking for! I'll keep trying.
With All the Trimmings