[new92xowner]

I used...

Rubber bands rolled to a pencil.

It's really quite alarming when this thing "blows up" right in front of your eyes. I imagine it's like cutting the blue wire, instead of the yellow one when you're diffusing a bomb.
A million pieces suddenly lie shattered before you.

Brilliant! I was *not* looking forward to this (and anyway, who has six small screwdrivers?

Tip - I used twist ties (like those from the supermarket used to close plastic bags) instead of tie wraps to hold the louvres in place.