mix Moutain Dew and Coke Zero and drink it.
Similar to the mentos and coke. Put as many lifesavers mints (polo mints if u live in the UK) then chug some coke!
get a pint glass and fill it half with coke and then the rest of it with soy milk then give it a good old mix! then chug that bad boy!!
put a mentos in your mouth, DON'T eat or swallow it, then drink some coke see how long you go without spitting it back out.