Getting Ready for the TOEFL? Top 9 Tips for Making Preparation Fun

This is a good read and useful tips:

Make It a Competition

Everything is more fun when it’s a competition. Put your students into two teams and let them choose a team name and create a team flag. Then award points for their performance on different preparation tasks (either tasks that involve the whole team at once or tasks that individuals perform). At the end of your preparations, add up all the points and reward the winning team with a free homework pass, a pizza party, extra points on the next assignment, or whatever your students like best.

Read more: http://busyteacher.org/22100-toefl-preparation-fun-9-tips.html

I also came across with this article as well: http://toeflibtspeaking.blogspot.com/2012/01/toefl-ibt-speakinglistening-skills.html