Better Coke Experiments?

As you know, last week on Friday, (Day BEFORE Saturday) we did a science experiment on coke and mentos explosion. I wasn't as good as we expected but Miss Davies said we could do another one sometime and we should talk in our science groups how to make it better. I was looking on YouTube on Friday (Same Day that we did experiment, STILL DAY BEFORE SATURDAY) and I looked at the different ones.

DO NOT LOOK AT THESE IN SCHOOL, YOU WILL GET IN TROUBLE, LOOK AT IT AT HOME.   

DO NOT LOOK AT THESE IN SCHOOL, YOU WILL GET IN TROUBLE, LOOK AT IT AT HOME.
I saw a coke fountain! http://www.youtube.com/watch?v=hKoB0MHVBvM
I saw a coke rocket: http://www.youtube.com/watch?v=uFybNB9zL1k
There was also a coke rocket that nearly killed someone:
http://www.youtube.com/watch?v=g4kBNBEJKD8&feature=fvw

DO NOT TRY THIS AT HOME WITHOUT AN ADULT OR PERMISSION.

I think those ways would be better and the rocket looked awesome.