Here is a template for a spelling bee (p.58)
My students really enjoyed this!
Have one or two volunteer students from each team bring their chairs and sit with their backs to the screen. If you have a microphone, have students use it! This spelling bee has 'rounds', and the words get progressively harder. You probably need to change some words, though, according to your students' level.
Every slide on the last round has a red dot in the corner. If you have a final winner, click the dot and the PPT will jump to Big Bang's Fantastic Baby :)
Round 1 PPT is more difficult than Round 2, so you can play again with weaker students who were probably too shy to volunteer the first time.