WANTED: flowering or bare birch tree branch

I figured I would post this in the Park Slope section, since it gets more readership than say the Sunset Park/Greenwood Heights board.

Anyone know where I can find or procure a large flowering birch tree branch.
I am willing to pick it up. I need it before May 1st (Beltane)

It doesn't actually have to be flowering, It can just be a birch branch. I don't want to deface some poor tree (as I know that's a fine-able offense), but if anyone knows someone who is cutting down a birch tree or wants to get rid of some long pieces of birch branches. please contact me ASAP.

Thanks a million,