I have thought about what my perfect collar would look like, thin, silver, black, leather, etc etc etc. I'm going the cheesey route tonight, think about this...

Forget what it looks like, forget the subtle nuances of different materials and close your eyes, (not yet silly!) and imagine, kneeling, your head is bowed in your submission to your partner as they come close. A familiar hand brushes gently against your cheek as they reache around your head, drawing the collar closed around your throat. This collar encircles your neck, not too tight, not too loose, just right. You hear the buckle jingle shut, perhaps the snap of a lock for the first time. That collar, in that moment, in all of its glory is the perfect collar.