If you have ever seen a speghetti bead you have the basic idea. Now take the bead and take off most of one side and it is perfect. I need an oblong solid worm/grub shape to go under my crochet patterns, needs to cover 85-90% of the hook shank to the bend, tapered at both ends, flat one one side if possible.

Like I said, take a speghetti bead, sand off one side just to the point the hole is starting to open up and you have the shape I need.