I haven't seen any rainchains in NYC...
We are really lacking a 'Japan town'.
they are available on line from http://www.japanesegifts.com/

You know, there is an upscale japanese gift shop on east 59th between 2nd & 3rd Aves...
Begins with a K...
On the south side of the street...
at a loss as to the exact name, nor have i ever been in there.
good luck

they have an assortment of rain chains... with diffrent tops and such... available at Matterhorn Nursery... just up from the city... exit 12 on the palasades parkway I think... and they have a web site... might get some there.... Gordon

Hi;
You can try: www.rainchains.com, or japanesegardensupplies.co.uk
Unfortunately there aren't too many garden shops in NYC.
Kathie