A ffc script that changes slow walk combos into ice combos.
Ice Script
You should be more specific about how you want ice to operate. And why give up slow walk combos? Just use a script flag.
Anyway, the Zodiac quest over in Quest Announcement has an ice script. It works only in sidescrolling, but it would be pretty easy to adapt to birds eye view. That script checks if the player moved last frame, and if so, keeps moving the player in that direction (slipping) until it hits a wall or the end of the ice.
Details:
It operates like ice in PH and makes push blocks slide like on Dan Furst's script: http://www.armageddongames.net/forums//thread/97521/
but, the ice pushblocks will sink into water, and fall into a pit.
Does the ice make Link slide? I might use the ice script for my ice temple.