Snowmodo: The Secret To Making Good Snow Gadgets

When I moved to SF, all the seasons melted together. But at Lake Tahoe, in this Winter-wonderland, what makes a good gadget is an entirely different thing. Here's my list or requirements.
(I am strictly speaking about electronic gadgets, although many pieces of camping and ski and snowboard gear also carry these attributes.)
1. Buttons are cute, but not when you're wearing mittens or gloves and can't press them. Designing them slightly taller or bigger helps a ton.
2. Bright colors help a gadget be seen when dropped in the snow. And they all get dropped in the snow, unless...
3. You provide (include in the box) straps and lanyards of all sorts. To be attached to backpacks, zipper loops, keychains, around the neck, etc. I've lost at least 1 sanyo waterproof camera, one casio rugged phone, one pentax in heavy surf, and one helmet cam that popped off its mount
4. Basic battery insulation: Batteries generate power