VFX mistakes in Star Trek

[Lucky]

Basically this is an attempt to make a list of mistakes the visual effects department has made to try to gage the reliability of Star Trek visuals.

Here is an example that WILGA just found.
Voyager: Year of Hell
http://images1.wikia.nocookie.net/__cb2 ... shower.jpg
http://images4.wikia.nocookie.net/__cb2 ... oroids.jpg

Micrometeoroids are much smaller if the sources I have found are to be believed, but who want to see a bunch of grains of sand moving at speeds so fast that you can't see them.
http://www.nasa.gov/centers/wstf/labora ... /mmod.html
http://www.thefreedictionary.com/micrometeoroid
http://dictionary.reference.com/science/micrometeoroid
http://en.wikipedia.org/wiki/Micrometeoroid

[The Dude]

The episode with the guys who speak in metaphor, you know when a phaser fires out of the forward torpedo tube.

[Picard]

Actually, that phaser might be acceptable mistake. Similarly, what was intended to be deflector dish on D'Deridex class warbird, turned into main disruptor array / forward torpedo launcher, but since we have ships without NAVDEF already (Miranda, Constellation) these are two examples that may be explained by torpedo launcher having integrated DEW banks.

[The Dude]

It was never seen before or since and the VFX crew admitted it was a gaffe IIRC.