Is there any meaning to the type of fur on your sporran

[Paul Henry]

I;m sure there are lots of reasons, but perhaps,

Availability of animals/ native to the area could be one
Showing ones wealth could be another
Personal preference might be the simplest!

[Downunder Kilt]

paulhenry has got it spot on IMHO

For the general masses there are no rules on what your sporran can be made of (except for skins that are illegal, of course)

[fluter]

... Availability of animals/ native to the area ... could be one

Around here the full-mask opossum would surely be the classic regional variant! And something of a fashion statement, as you know if you've met one in person.

The next most familiar is the raccoon. Occasionally we get an infestation of beavers, but I don't think harvesting them is the done thing; nor have I the inclination or expertise.

In terms of personal preference I have a fondness for muskrat, but mink is the current favorite.