As it turns out, Thrums are fun! These super warm socks were not as challenging as I thought, and took about 12 - 14 hours to complete. The thrumming process was more fiddly than anything, but using the Louet Norhern Lights pencil roving certainly did help make the thrums even. I think I may make another pair with my alpaca roving for myself.
I didn't try them on, since they're for someone else, but my hand was HOT when I was kitchenering the toes!
The best part? How cool they look when turned inside-out!
Like deranged muppet parts!