This idea … it made me extremely sad and happy at the same time and I started to draw right after reading it. For me it is canon already.
Bofur head canon: At one point in his life Bofur was very much in love with a dwarf woman. She was soon pregnant and Bofur started learning how to make toys for his child, making as many as he could. Unfortunately there were complications with the birth and mother and baby did not make it. In an attempt to rid the pain Bofur felt, he sold off all the toys he made for his child, promising never to make another toy again, but the happiness his toys brought to other children made up for the pain, so he carried on making toys, giving children the happiness he would have given his own child.
And that is how he became a toymaker.