Place this clip at the moment of the reveal, then follow it with awkward crickets while everyone stares at the failed gadget, and finish on a whip crack when somebody finally tries to use the thing anyway and regrets it instantly.
About this sound
This is a six-second voice clip of a man shouting the Go Go Gadget Brown Bricks line in an over-the-top heroic tone before it breaks into a drawn-out scream. It feels ridiculous and chaotic, turning a confident gadget call into instant panic and pain, which is why the delivery lands as pure slapstick embarrassment.