If you're thinking of blowing cooled air towards the driver or something -- I've got a photo of one of them, but said picture is at the house. And I don't have inner details showing how the air is cooled. That is, if the air just passes above the ice it won't get as cold as if it's blown/drawn through the ice. But if the second method is used -- what prevents the melted ice (otherwise commonly known as water) from dribbling back into the input device?
If you're thinking of the air/ice/air cooler -- I do think I remember that the blower was mounted right on the cooler's body, and the hose (which was soft flexible stuff, like a vacuum cleaner hose) was also there - maybe on the top. The hose is removable for transport and packing.
Need more? I'll try to find that photo if you'd like.