You can drill a small hole into the middle of an 1/8 inch wooden dowel rod for the wire weedgaurd and do the same thing. You can also make a high heat rtv silicone insert buy squeezing the propper size straw full. Let it get hard and cut to length. Drill a hole in the middle.

http://www.jannsnetcraft.com/w....aspx

http://lurepartsonline.com/s.nl/it.A/id.17005/.f

http://lurepartsonline.com/s.nl/it.A/id.17004/.f

Or you can make your own out of coiled wire. I'd cut it longer than you want, bend in 1/2, insert it in the dowel or rtv with the "U" or "V" bend inside the head and have two wires if it were me.

I think I would actually try the titanium wire, Not sure of the size needed though. http://lurepartsonline.com/s.nl/it.A/id.6104/.f