You can also find Houndstooth Yarns here:
A Yarn Less Raveled
https://www.ayarnlessraveled.com/
730 Camino Ramon Pl
Danville, CA
1322 Haight St.
San Francisco, CA 94117
Kira K Designs (Stratiform Shawl Kit)
Rumpelstiltskin Yarns
https://rumpelyarn.com/
1021 R St #6519
Sacramento, CA