I noticed someone wearing fox ears and a tail and was wondering what shop I can purchase them from?

That is the Kitsune and Caboodle CI from August 2009.
It is around 1,500 gold, but due to rarity you may have to pay a little more.
I will caution you that you must buy in the Exchange forum, from other users.
You may make a buying thread, but you are only allowed one exchange thread for the rest of your Menewshan life :O
If you ever get an offer that's obscure, check the Price Guide, a sticky in the exchange, to be safe. Some people may be picky about selling this.

Perfect! I'll get onto that. Thanks!

Yep!
You should change the thread title to RESOLVED, well the prefix, for I answered your question.

Got it! <phew> Takes a bit of learning to this new site. :3

That's good.
Did you get to doing the prefix yet?

Mods usually come through here anyway and change the prefix's to resolved ;D so don't worry