They won't be very warm. I suggest you try a softer, warmer yarn for the mitten and use the fun fur for the trim or cuff.

Good point. I didn't think of that. Thanks. She is moving from FLA to RI. She'll need the warmth.

You could hold the fun fur with another, warmer worsted weight yarn. Lion Brand website has a "family of mittens" pattern that might work.

Here is a link that might be useful: Family of Mittens

Be sure to make her a matching muffler too. Even a hat.

I've made her a scarf from the fur and a sport weight yarn. I like the effect. It is much more practical. You were right. Now on to the mittens and hat.