[strela]

"I have a little list ... they never will be missed ..."

bigger
chigger
Day-Glo
digger
donkey
gig
niggardly
niggling
pig
piglet
rig
rigger
spigot

Feel free to add to this list. We need to get this off to Concerned Parents everywhere, most ricky-tick.

[kaylar]

There's a kind of tropical fish out there called the "wet dick", aka the 'slippery dick.' Does that count?

[supercat]

"I have a little list ... they never will be missed ..."

You forgot "iguana"--it sounds a lot like a term for an arrogant buffoon (i.e. "akwana"). Perhaps a teacher could make a deliberate point, in an animals lesson, of leaving that particular animal unlabeled.

[dano1]

Feel free to add to this list. We need to get this off to Concerned Parents everywhere, most ricky-tick.

How about "beach" and "sheet"?

[Looking4Truth]

Here are my additions to your list.

witch, ditch, pitch, Mitch

hit, bit, fit, git(southern speak), mit, nit, wit

duck, luck, muck, tuck

runt, punt, stunt, shunt

I wish it wasn't against the law to slap some of the dumbasses in the world silly for their ignorance.

[bk1000]

Don't put 'gig' in there, I play in a band and that's what we do! Now, about those filthy ducks!