Instead practice, human always want to solve problem with gadgets.
I use an already old principle of stabilizing object ... known on the ships, from centuries.
And here it is..... gyroscope.
Step 1: Idea, material, tools, cut and try...
First i drill on opposite sides a hole for a small axe from both sides (1,5 mm) deep enough to match two rings. Then I cut on turning machine first ring out.
You can cut this with simple thin hand model saw...but on cost longer time and need to be after carefully finished.
Step 2: First assembling
Then find out a 4 small washers as distances between the rings and re-assemble again. Drop oil also helps.
Now you have Gyro-gadget. For the others ask gravity.
Step 3: Handle
The plexy for rings was 8 mm thick, and it was enough strong to hold future weight.
Step 5: My camera
So I construct my own housing - especially for this steady cam.
And here it is.
I put the 8 mm rod with weights on end to test movements.
It's steady! Thanks to old gravity.
Step 6: Experiments
On the end I insert a small bearing (from rollers) in the middle plate to get smoother turning, diameter is 15 shaft 6mm thickness 5 mm and glued it with two small plexi rings. To have smooth panorama.
Step 7: Steady cam "KPgyro" final
I grab the weight with two fingers and rotate.
To walk among people and do not swing horizon (to much)...:)
The rod and weight are about 350gr total.
Note: Best result you can get, when the all shift between rings are watchmakers perfect made.
Distance between rings should be thinner as can be.
Rotation of rings should be friction free.
It works for me.
You can improve this. Up to split-hairs standards.