I thought I would add a couple of things. The kids are 3,4 and 5 years old and would love anything in a wool acrylic blend. Also if time is an issue there is a pattern here that knits up awfully quick even for a beginner like me!
http://www.afghansforafghans.org/mittens.html , I would only recommend making the cuff longer and doubling up worsted weight yarn. Thanks for everyone on the KAL board who is volunteering a pair or two. Winter is a matter of days away here and the kids at school are gonna love those warm fuzzies!