And here are the finished Frankensocks:-
You can see that they’re related. The third sock yarn, used on the feet, was from these socks:
It’s James C. Brett’s Funny Feetz. (I bought 2x100g balls, back in 2019, and have knitted 3 pairs of socks with it plus this pair. Their quality control is appalling - one ball was full of flaws.). On the second sock, I ran out of both colours of the Lang Super Soxx, so ended up working in the end of a fourth ball of yarn, alternating with it for about 10 rows. No idea from which pair of socks it originated.