[pattern] Mom's Thrummed House Slippers

These things are so cozy! The slippers knit up in a few hours on Brown Sheep Lamb's Pride Bulky in Oatmeal with size 11 needles, and then a few more hours to thrum them with alpaca fiber with a crochet hook. Probably 4/5 of the skein was used. And I really should have written this up a month ago when I still had everything fresh in my head :/

PATTERN
This is a modified toe up sock with a figure 8 cast on. Increases are every row instead of every other row. Work is done in spirals. The leaf pattern is the same one used for my Lacey Leaf socks, taken upside down, and only once across.
1) Cast on 8 sts on two DPN needles in figure 8. Knit first row all around, splitting on to 4 DPNs.
2) K1, m1, k6, m1, k2, m1, k6, m1, k1. 20 sts around.
3) K1, m1, k8, m1, k2, m1, k8, m1, k1. 24 sts around.
4) K1, m1, k10, m1, k2, m1, k10, m1, k1. 28 sts around.
5) K1, m1, k12, m1, k2, m1, k12, m1, k1. 32 sts around.
Here is where the patterning starts. For the lace pattern, you will pattern every odd row and k every even row.
6) K32
7) K5, yo, ssk, p1, k2tog, yo, k6. 16 sts.
9) K4, yo, k1, ssk, p1, k2tog, k1, yo, k5.
11) K3, yo, k2, ssk, p1, k2tog, k2, yo, k4.
13) K2, yo, k3, ssk, p1, k2tog, k3, yo, k3.
15) K2, k2tog, yo, k7, yo, ssk, k3.
17) K2, k2tog, k1, yo, k5, yo, k1, ssk, k3.
19) K2, k2tog, k2, yo, k3, yo, k2, ssk, k3.
21) K2, k2tog, k3, yo, k1, yo, k3, ssk, k3.
22-29) repeat first half of pattern from row 6.
Insert a short row heel on side opposite of pattern.
30-37) repeat second half of pattern (rows 14-21).
Knit in spiral to desired height (about four rows) and make an EZ super stretchy bind off.

Thrumming is inserted down center of pattern, and along footbed, moving diagonally two rows and two stitches for next point.
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My sister's house slippers, in brown, were done on size 10 needles and without thrumming or lace pattern. Five more rows were added to the footbed (35 total) to compensate for a smaller gauge.