I do love it when they grow out of the old, battered hand-me-downs. Because it cracks open the door to a little hand-crafting, in this case the knitting up of a pair of gnome slippers for my elf-child.
My project is here on Ravelry. You can find the (free!) pattern there. Oh I do love Ravelry.
These slippers are knitted up big then felted down to for a custom fit.
If you have never made felted slippers before I strongly recommend it. They are satisfying to make and crazy warm for cool days. I have made this more serious/less fanciful pattern for Pete, Sage, and I before but the elf pattern was too cute to pass up. All you need to master is short rows (w&t) and you'll be ready to roll.
Bring it on, October. We're ready for ya.