francescoCh Mine is nothing fancy. I used self-adhesive wheel balancing weights (the stick-on steel strips for car rims, sold in 5 g / 10 g segments). I stacked a few strips to reach 195 g, taped the stack together, and mounted it with a velcro strap on the underside of the base, opposite the arm.
The velcro is the key part: it holds firmly (nothing wobbles, which matters — a loose weight would add its own movement), but it comes off cleanly with no residue, so it is reversible and does not affect the warranty. You can also reposition it easily for different pointing directions. Any object around 180–200 g would work; the wheel weights are just convenient because they are cheap, flat, and fine-adjustable in 5 g steps.
