My girlfriend is a graphic designer, and funnily enough... works at a graphic design office which makes stickers. What's the crack?
What are they, and what do ya want em for?
They normally do bulk work or "fine" printing which means they're a little more expensive than a smaller printer but their work is top grade. They've won heaps of awards too and we use them for our posters, etc.
If you're just after something quick 'n' nasty, try Kwik Kopy or Snap (Like Dave mentioned) or someone - their 1 color work is normally pretty cheap!