I've found the pet store  great for long leashes, some collars, and the hardware store for
all the nuts and bots ooh and yes chains which they can cut for you by the lenght.  I recommend you get a few of these, they make for great shackles and at times, I like to dress my guy up in nothing but  wrist/ankle cuffs and a three ring collar with chains hanging from every loop quite decorative  

Here's one of my favorite new vendors -- they've been at the Threshold BIzarre Bazaar and other events.  If you already have a regular flogger, I'd suggest supplementing it with one of their bunny fur floggers, which are more sensual.  I love mine.  If you play with your bunny flogger after you've warmed someone up with a deerskin flogger, the sensation is really nice contrast on the skin.  OR, if you want to put some energy into it, the bunny flogger can go from sensual to a nice thuddy sensation.

They also do other kinds of floggers, and made me a terrific elkskin flogger recently.