If you know what they look like they are not hard to make, especially if you have one setting there.
Grab a piece of spring wire with needle nose pliers, so the end of the wire is pointing down towards the plier handles.
Wrap the spring wire down the jaws of the pliers, you get the cone shape.
Bend the piece you had in the jaws of the pliers to the "L" shaped hook.
Cheap too, if you have access to some spring wire.
