StarryKnight
Because Twitter really should have a documented favorites API
Using this probably breaks Twitter's TOS. So you definitely shouldn't use it. Nope. Never. Ever.
StarryKnight is a very simple Node module that gives you two methods. Those two methods are very self explanatory, but I put examples anyway.
NOTE: I have not touched this code in months. It may not work perfectly. I might be able to fix it if you drop me a tweet.
Examples
var StarryKnight = require('StarryKnight')
StarryKnight.getUsersLatestTweets('ws', function(tweets){
console.log(tweets)
})
StarryKnight.getTweetFaves('380862378214457347', function(users){
console.log(users)
})