Dildo Test Challenge. Which One Would Be Best of the Best?

Do I have many toys or few? In this video, about 30% of my collection) At least this is what has a suction cup, a lot without it, and I could not figure out how to fix them for the test. Therefore, I am testing only a part this time. Do you have any ideas how to fix without a suction cup to this board – write in the comments)