How about concealing
a recording DEVICE...
The Big Bang Theory Season 4, Episode 22
Okay, so what it sounds like is what we want
is a DEVICE that can deliver a message...
The Big Bang Theory Season 8, Episode 21
Assuming a DEVICE could be invented...
The Big Bang Theory Season 1, Episode 12
can't be used
as a flotation DEVICE.
The Big Bang Theory Season 5, Episode 10
Although it occurs to me, you may
have been employing a rhetorical DEVICE...
The Big Bang Theory Season 1, Episode 10