Take a cue from what's been succesfully used for decades.
That is a very nice looking case. Perhaps in the future when I can justify the expense I will purchase something like that. Had I already owned the case pictured, I still would have started the thread, instead asking how can I secure it to "this" case while not blocking the air flow underneath.
For now I feel comfortable in having a secure shock absorbing mount for an out of pocket expense of about $5 using mostly supplies already on hand.
Also, play in better places....
That is a completely different issue requiring different solutions. I believe most of the solutions will involve psychological treatment in some form.