You can get some through Rainbow Jigs in 1/8th and 1/4 ounce with no collars. Their 1/16th heavy wire jigheads have collars. They just had a special mold made to make those jigs. You can contact them through e-mail at rainbowjigs@aol.com.
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G.Loomis Pro Staff
Auburn Sports and Marine Pro Staff
Savage gear/ Pro Logic