This was for my Merlin-obsessed friend for Christmas! I found a picture of the Pendragon dragon and created a simplified version of it. I cut this out of yellow felt and glued it onto a store-bought Xmas stocking. The glue holds it together pretty well, though I guess you could sew it on if you wanted.
I'd never really thought about personalising stockings before, but as this one turned out quite well in the end, I might do it again next Christmas! ;)