I know I posted a while back about something similar, but i found this other diy tutorial on it. This one is just hand sewing techniques. It is very easy and would make a great gift.
http://www.homemade-holiday-gifts.com/felted-slippers.html
You use an old wool sweater, make a template of your foot, cut out the pieces, blanket-stitch around, sew on the cuffs (making sure you pull it tight), and add buttons. The slippers have also been felted.
The tutorial is very well written. Check it out.
