TDI Rap battles?

I have been watching the Epic Rap Battles of History shows on youtube and I was wondering, can anybody right a rap battle for some tdi characters.

Possible Ideas:

Cody vs. Trent

Gwen vs. Sierra

Duncan vs. Geoff

Chris vs. Cheff

Heather vs. Izzy
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If u can right a rap battle for any of the above of some other people, post it below.