uh..... you could "weight" your own trebbles ya know.
Some solder wire wrapped nice and tight until you reach a weight your comfortable with........heck, you might even want to warm it up a little .....maybe it will melt a little......who nose
YOu can also make a quick mold with some foil,....and a littel eye/magination, some lead (a sinker) and sum tin to melt it wit