Best suction cup mount for a GoPro?

[MareLuce]

Any suggestions on the best suction cup mount for a GoPro?

2 use cases for my upcoming Alaska trip:

1) Cruise room balcony sliding door

2) Rental car window

 

[esskay]

Having lost and destroyed a GoPro off a shoot with a Dodge Challenger, if you attach to the outside of the vehicle, I highly recommend a tether!

This one has worked pretty well:
https://www.bhphotovideo.com/c/prod...NT_SUCTION_Fat_Gecko_Dual_Suction_Camera.html

They make single suction cup versions if you want smaller, but more the better!

ETA: to clarify, I meant more suction cups are better (e.g. dual or triple suction cups).

 

[mtbdudex]

How about instead this, you can securley tie it down to the vehicle door frame and crack the window, and also the cruise boat railing ....
Action Camera Mount for Helmets with Quick-Release Straps & Extension Arm by USA Gear - Works with GoPro HERO6 Black, HERO5 Black/Session, AKASO EK7000, Contour ROAM3 & More Action Cameras
https://www.amazon.com/gp/product/B00NMWTPOA/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1