Not a bad idea

One of these options is not like the other

beat them and wATcH THE GLITTER SHOOT EVERYWHERE

Step 1, beat your child with a glitter bottle. Step 2, once your done force them to watch the glitter settle to help them calm down. Step 3, If they aren't calm by the time the glitter settles then tell them what a disappointment they are and go back to step 1

2 kinds of people

I used to be the kind of child who would open the bottle and spill everything.

Works for adult chill time too, and glue the lid on.

My little cousin would be so pissed about being in timeout she'd open the bottle and pour it out on the carpet.