|Heart lock and key.|
I really like the idea of the object itself, duplicating solid iron in light, soft merino wool.
I had fun with the romantic sub-text. Being called a "Ball and Chain" is definitely not romantic, but love and relationships do have obligations and commitments. It struck me as romantic to turn the ball and chain idea on it's head, and instead of a burden, show it as something warm, fuzzy and cute. And maybe a bit sexy, depending on your perspective.