While not strictly lightweight, here's a neat multiple-use gear item: the Ove Glove.
This is a mid-to-heavyweight glove (6 oz./pair) made of Nomex and Kevlar like firefighters' gloves. It's designed as a kitchen tool but I find it great for the backcountry.
I hate pot handles and I have white lines on my hands to show why. I hate pot lifters as they weigh a lot and offer relatively little control over big pots. The are often useless when the lid is on, too.
The Ove Glove is heat-resistant to 540 degrees so you can:
pick up a pot using both hands as if it were cold
pick up/move/adjust glowing-red stoves
adjust logs in a burning fire
...all the various things we do with sticks, pokers, multi-tools, and quite a bit of chance.
I wear my Ove Gloves as my summer gloves. Yes, they have a 60% cotton liner. Yes, they're heavy as heck. But they take the "balancing act" around the stove out of the equation, they're nice to sleep in, and they're silicone-coated for a non-slip grip on trekking poles and paddles.