Mittens for Jason: Triple stranding heavy worsted, pulling from inside & outside on 1st cake + inside from 2nd cake = 3 strands.
Mittens for Lex : Triple stranding worsted and chunky, pulling from inside & outside on worsted speckled cake + inside from chunky cake = 3 strands.
(I modified this pattern, using us13/9mm dpns and casting on 20sts for Jason & 18sts for Lex, also custom lengths)
. ..a pair made in an afternoon, which is mind blowing for this slow knitter.. .