LenntCant get mine to change colors but I dont have an ice maker. So I just tried to hold a can of sprite to em and had no success :( Just gonna wait for it to snow and throw em out in the cold tor a minute.
Same here, I was unable to get a colors to change to purple (cold) and green (warm).
When the skis were new they would change color if you kept your hand on em for like, 10 seconds, now they don't change color as readily.
If they lost their ability to change color after one season, that's less than ideal but the grey is pretty cool itself :)
We'll see what happens when it starts snowing