ChefRubber.com has some great stuff.
Pavoni has some AMAZING stuff www.pavonitalia.com
www.chocolat-chocolat.com also has some great stuff too.
I've purchased from all of them and had great service.
With regard to hand dipping tools, I would recommend have your own made. Every tool I've purchased has failed. Simply put, they are crap.They are tack-welded together and the welds inevitably fail. Plus they are all flat, and you have to bend them to get them to work properly. As soon as you start bending mild steel to make it do what you want you start to weaken it. They are a bad design - pure and simple.
Hope that helps.