[Bob Andersen]

I think silicone and liquid tape are a little too think and add weight to the cone. Same goes for rubber cement. I like the use Ailene's Tacky Glue diluted with a little water so it soaks into the cone material plus coffee filter patches as needed. Basically the same idea as Syl's technique found elsewhere in this forum. Plain old Elmers white glue diluted works well too.

Here's a nice repair with tacky glue.
[Image: http://farm9.staticflickr.com/8120/86201...908b_z.jpg]

Here's an ugly repair with rubber cement. It sounds pretty crappy.
[Image: http://farm9.staticflickr.com/8241/86201...b4aa_z.jpg]