Quote Originally Posted by Galant
I think they come with a chain.

Straps prove a little more elusive. So far I've found you can get the sporran loops from Scottish Tartans (Matt Newsome) and Buzz. Straps can be had from Freelander and also from Thistle Stop (Cyndi).

I'm currently shopping for my first sporran - quite a task! Maybe though I'm overcomplicating things.
I sell the loops, too -- and the sporrans, and everything else Buzz Kidder makes. Buzz's sporrans come with a plain chain. You can upgrade to a chain strap or a sporran belt-strap (all-leather) or buy the loops and suspend the sporran directly from a belt. This method is especially good for guys with a bit of 'belly' because it eliminates the 'pooching' effect (when the sporran chain slips under the tummy). It's also good for anyone that likes to move the sporran to the side frequently, because you won't have the buckle end of a chain strap ending up on your other side.