Best Suction Cups For Airlines?

[DeathStalker]

I've been looking for LONG-lasting suction cups, but all I can find are the CHEAP rubber cups that totally lose all suction in about a month! I was thinking maybe silicone cups? Anything else? Can't seem to find any on Amazon.

Thanks!

--- DS

 

[TwoHedWlf]

I spent way too long looking at your title and thinking, "Like...Qantas? Would they need need to be like 30% bigger to account for the lower cabin pressure at altitude?"