My first DIY Wacky O-Ring uses heat shrink tubing. This solution works well. However, if heat is applied too long, it can melt the Senko, which is no bueno. I now use recycled rubber grips from spent pens.
Making Wacky O-Rings from recycled rubber pen grips has one step: cut a 1/4″ wide ring from the end of the soft rubber grip via utility knife. I use my DIY Wacky O-Ring Rigger to secure the DIY Wacky O-Rings to my Senkos.
This second generation DIY Wacky O-Ring has several advantages. First, it costs $0.00. Second, it is very easy to make. Third, it does not damage the Senko, which can happen when applying heat during to shrink the tubing on generation one. Forth, it provides a stronger grip on the Senko than commercial O-Rings because it has a wider surface area. And lastly, it allows the hook to be perpendicular to the Senko, which increases your hook-up ratio.
