Basically, let's put it this way...
If you're going to create one you better make sure it's 100% legitimate otherwise you may face a law suit against you.
Also, the only way for it to really work would be for you to create bots that used Toribash accounts to trade items, TC, etc as the "currency" for your website. Not quite sure if this is even supported or allowed by Nabi itself.
Would be quite the grey area.