Kids might play on this in a playground Adults might do this to spice up their marriage

You put me on a platter but not to eat, Flip me over and repeat!

A vessel of secrets, it holds warmth or chill, often seen in the lab, ready to fulfill. With a narrow neck and a belly wide, it’s a chemist’s trusted guide.

I hide a secret or a collar turned high, A uniform for shadows under a rainy sky. With a belt at my waist and buttons in a line, I’m the classic armor for a detective’s design.

I can be a skeleton but no being wears me Without the window there is nothing to see I am the part that pictures wear too And chances are I hold a portrait of you