hmmmm, it's a lot better and cheaper to get branches from the woods next to your apartment. Because you can also choose exactly what you want and it's kinda fun since you know you found it yourself =).
Just remember to use like a box cutter knife to kinda cut off the bark or rough parts....thats what I did.....and then after you do that, put it in like a pail and soak it with boiling hot water and add bleach.....if you can, leave it over night but make sure all parts of the branch gets soaked in it. After that, Rinse it all in cold water and let it dry in the sun. And as for leaves, BUY artificial...the plants made by exo-terra out of silk is a good choice. They are easy to clean and look good.
IF you want, you could bake it.....but once you let it dry in the sun, it's already really safe =)
(I myself just got branches the other day...and boy...my corn really loved climbing around it, he looked like a tree boa or something lol)
Good Luck.
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"Isn't it funny you hear a phone ring and it could be anybody, but a ringing phone has to be answered doesn't it?"