Non bouncy desktop riser/stand?

I am looking for two desktop risers to put my Analog four and Octatrack on that will be placed behind my coming Moog sub 37.
I have a laptop stand today, Griffin ELEVATOR (see image) that I have the A4 on but every time i play on or touch it it starts to bounce, which is quite annoying.

Does anyone have experience and satisfaction with any of these on the picture or have any other suggestion?

I was thinking of a kind of dj laptop stand as on the picture but are they just as bouncy/unstable


Rain Design mStand has some bounce, but is still rather nice.

+1! I am loving my mStands.