...so it can't swivel too much? Mini 1-2" Turntable/Lazy Susan for a gadget dock (iPad,iPhone), low profile, stiff so it can't swivel too much

I can't find anything suitable for an iPhone or iPad Apple Dock, to stick under the dock and then stick to a table so the Dock is immovable yet can swivel/turn/rotate around semi-freely when desired.

Would be best to be fairly stiff, 1 to 2 inches diameter, and as thin profile/height as possible

Anything even something jerry rigged together would be fine, it just need a bit of rotational movement

Thanks