Breast Collar Colour Advise?

It is a pretty standard practice in general western riding to match all your tack (saddles, bridles, breast collars) and then use boots and saddle pads to spice it up. I think if you just got the zebra breast collar and kept using your regular bridle, it would look mis-matched and a bit tacky.

I think the best way to go about it would be to either get the BC to match your saddle/bridle, or get the BC/pad set and find a bridle to match that.

Tacky is definitely something I want to avoid!
At this point I am definitely leaning towards the brown one. She does already have zebra print boots, granted she won't be wearing them that often but it probably all will go fine. I'm thinking I'll go with that and if I want to add more zebra I'll go with a browband like aspin suggested..

Are you insinuating my tastes in tack is tacky? If you are, thank you, it was the look I was trying to achieve :)

No, I don't consider the colorful tack tacky (so long as you are in a discipline that allows it like gaming or trail riding), it's just when it's mismatched that it starts to look thrown together and "tacky".