as much as i want to say "this"....
this:
1- boil water, insert poles in grips down
2- pull them off..boiling should help them slide right off
3- cut with hacksaw. if you dont have one, you can use the edge of a file to notch them and then just break them, if you notch them well with a file they will snap clean
4- coat pole top with hairspray before putting grips back on. this will lube the pole while its wet and then act as glue once it dries
5- jam the handles back on