So how do I....?

[kiltedwolfman]

Hey folks, I've lately started making sporrans out of any kind of material I can get my hands on....I think I've gone mad! However I need a bit of advice from some of the more experienced DIY'ers since I am rather a novice when it comes to all things sewn.
What are some good ways to cover an exposed seam so that it A, looks nice, B, doesn't frey?, and C, can be done when sewing in a curve like the flap of the sporran.
So far I have simply started by sewing thins inside out, and then turning them outside right and it works to a degree but doesn't have the clean look I'm aiming for. I've also used seam sealer but it leaves a visible hardness that takes away from the work.
Any info or advice, and especially pics since I'm a visual learner would be excellent.

Cheers.