I shared one felt hair bow with you already; here is another version. This one looks especially cute on little girls (I gotta get me one of those, ha).
glue gun/glue sticks
bobby pins (or other hair clips)
cut out a small oval shape from your felt (in the color of your choice).
also cut out a small, thin strip of felt, about 1/4" thick and 1" long
pinch your oval like so. Put a dot of hot glue in the fold.
wrap your felt strip around the center of the bow, add a bobby pin, and secure with hot glue.
even easier than the last!