Spider mount for H4n field recorder for 15mm rod systems

With the H4n attached to my shoulder rig or camera I noticed that it does pick up some impact noise from my hands on the other side of the rig.
(Most of the time it's not noticeable.)

Background
For a microphone you usually counter this with a spider mount.
However such mounts seem to exist only for conventional microphones.
Not for field recorders.
Using the microphone-stand adapter of the H4n was no option as the high center of gravity only allows for stationary mounting of the recorde