These are 1/32 and 1/16 oz x #6 sickles that I made the spinner swivel attachment out of Mustad 3366A large eye #8 hook. I bend the hook eye section of the hook and snipe it off. I open the eye slightly and place it in the mold and cast it. I can then paint the head without having to protect the swivel. The free swinging barrel swivel also gives the spinner blade more action I believe. As I mentioned in a previous post I use the #0 Do-it insert in my 1/8 oz and above horse heads but that insert is to big for these smaller heads. Thought I would share.