csp4.0, .... salted ice with soda? that tasted awful.. i can imagine that~

Assuming that this works, this would be awesome. Although, I see a few problems.

1) People might drink their coke/diet coke before the ice cube has the chance to melt.
2) The ice cubes could dilute the mentos thus making them unusable

There are probably more. I'll try this experiment some time and then post again, stating my results.

excellent concept.... heres a major problem though:

the only reason it foams a lot is because of the preasure of a BOTTLE.... so if its in a glass.... it won't work as well.... although it may foam over the edge a little and end up all over someones dress....

The mention of mentos and coke reminds me of something hilarious I did... In science class we did a few experiments with mentos and coke... afterwards, some of the mentos mints were still inside the coke... so I let them dissolve a little bit... and then I chugged 1 (1 1/2 maybe? it was a while ago) litres of the flat-minty-gross frickin coke...