Here are some more fun mitten activities that I have had fun doing with my children over the years(sorry there are no pictures)
Read book-The Mitten by Jan Brett
Sequencing: mitten with animals(http://www.janbrett.com/activities_pages_artwork.htm)
Mm practice. Laminate mittens with Mm on it and have the kids trace them with a dry erase marker.
Mitten memory game.
Puppet show. See if the kids can guess who is going into the mitten next.
Design your own mitten. Make mitten print outs and have the kids cut out and design their own mitten with a M on it.
Bring some snow in and hide winter animals in it or shaving cream works(non menthol) in the water table or dishpan