These are the $14.50 officially licensed Bob Ross Fuzzy Hair Women's Crew Socks available from Always Fits. The socks feature some happy little trees as well as a caricature of Bob complete with fuzzy perm, and fit women's shoe sizes 5 - 10. Me? I'm a women's shoe size 14, and they don't even make panties in my size.
Keep going for a couple more product shots.
Thanks to K Diddie, who agrees this is probably not the most appropriate sock to fill with pennies and wallop an enemy with.