Something like this you mean
A length of stiff tubing, and a Tail rubber at the end, and a large ring swivel.
The beads are soft rubber beads, and under LIGHT pressure do release, so there is no way that the fish should get snagged up and be left trailing any more than just a rig. The length of tubing can be used as a short length shown, or can be used longer if you would like a more Silt style set-up. As can be seen from the second pic, the lead is held onto a quick link swivel by the wide end of the tail rubber.
The beads do pull free, so that the rig can be ejected
If you use it with a leader, please make sure that the top bead can slide over the leader knot and that the rig swivel can also go over it, although any leader increases the chance of a tethered fish. I would suggest that if there are any snags or weed then the leader is dispensed with.