you can just comb your hair from your comb into some merino and spin it if you want to
@rabcyr @WuMargaret I have long hair and have wondered if adding some to my yarn would make it both more durable and personal. Haven't yet, however. It's too long for carding but possibly combing might work.
But regardless, if you have short fibers worked in with long, you'll want a tight twist to minimize shedding.