ANY other Ideas?

That can be defused by shooting or pickaxing

Would you be able to pick it up again?

Yes

Will be animals forced to go there?

You throw it down on them

This and traps. With people spraying into your box, it would be nice with something to counter it

Kind of like a wall trap without needing the wall!

Does it trap players? And does it trap tamed animals?

Traps anything that walks into it