I think this didn’t make it into the shooting script:
Q: Well, you see, 007, this may look ridiculous but the teddy bear actually explodes upon impact. These have been known to put fist-sized holes into armored-plated vehicles.
BOND: Hmmm. All right, Q, I’ll…take your word for it.
Q: (snickering) Everyone! Everyone! He believed it!
M: I wish I could see the look on his face when he tries that on a tank.
Okay, we’re lying bastards. It’s really a teddy bear gun you use at Japanese wedding receptions.
Yeah, I know. The Bond thing seems more plausible. Found via Gizmodo.