MOAR stoofs! :D
I fix teh transparent ones:

Much easier to see now. *nods* I really wish Lego would do some flat tile pieces in purple and in medium blue though, that would be most awesome!
Next up, kyoot lil ibbies! Meow, meows!

I think I've got all of 'em.
And then of course there are CRABS! Crabs?! In ~your~ nether region?! It's more likely than you think!

Think I got all of those too.
Puppies! Arf, arfs! :D

The two on the left are the old style, the two on the right are the new style, which have more detailed faces/feet and have painted face patterns. Neato!
Froggies! Hippity hops! If you're wondering why Lego would make a red and yellow frog, it's cause they're from one of their board game sets I believe. In case you're not aware Lego has been doing a whole ~sleeeew~ of board games that utilize Lego parts and pieces, some of which have quite a few rare parts...and, as such, can also quite espensive. I believe I have every single known color (from sets).

Parrots! Rainbow fluff birds! :D

...pretty sure I got all of 'em.
"Ahhh yes, the spee-iiiidar!" :3

Again, every single known color...not sure why they've never done any green or trans green ones. Disappointment! *nods*
Apples!

The green ones are one of ~the~ worst parts to buy on BrickLink. Like over 70%+ of all the people on BrickLink selling "green" apples...yeah, they're actually selling BRIGHT green apples...they just don't know the difference. *rolls eyes* I believe I wound up with like...30 extra bright green apples in my concerted effort to just get about ~8~ regular green ones. Not to mention tons of money wasted in shipping. Luckily I at least got refunds on the over-priced bright green ones. If you ever want to buy some *ALWAYS* be sure to *ASK* the seller *FIRST*...and make sure that they actually ~know~ the difference between green and bright green...cause many do not.
Various canned food items. Most of these are uber rare and *VERY* expensive parts.

The two new ones on the very far left are the new milk and orange juice containers from the new Friends series...you can put one of those 1x1 sloped tile pieces on them to complete the look.
Fruits and grains! I am missing the lime green cherries...on purpose though...cause they're kinda ugly...and useless...I mean, who wants unripe, green cherries? Yuck! With a lot of stuff I collect multiples, like four of each. So I have four carrots, four bananas, four of each bread roll and croissant (in each of their respective colors). The cherries I believe I have ten of each.

A lot of my collecting is based on usage, for example ten cherries fit quite nicely into the little 3x4 crates/basket pieces, so if I wanted to do a little sidewalk shop or something then I would have just the right amount.
Every single known and unknown color of ice cream! Some of these are way, *WAY* freakin expensive. For example that blue one on the very, very far left end...that cost me twenty bucks! o_O

And only *ONE* has ever been sold on BrickLink (that one you see in the picture). The third one in from it, the light violet one, was also twenty bucks and only TWO of those have ever been sold on BrickLink, with just a single one left available.
Meats!

I'd like to get an earth orange turkey too at some point.
Popsicles! Every known color of 'em!

Trans-red is the rarest, mine cost me nearly five bucks!
Junk foods! The pizzas come in two base colors...yellow and tan...I don't have any of the yellow ones though cause they look kinda funny. The cupcake there on the far right is another rare/expensive part, worth about 3 to 4 bucks on its own! The chocolate bar as well is a very rare part, only appearing in four sets, Harry Potter ones, making it worth even more, nearly a buck each.

Those three colorful bits there I actually use with the cupcake holders from the new Friends series...I keep them in a separate baggie. I have two of each color, and then four of each color of cupcake holder (there's only yellow and medium blue right now).
Bicycles!

I'm only missing two, the HTF, non-standard color ones! The blue one and the bright light orange one, mostly cause the first sells for around 60 to 70 bucks and the later sells for nearly 40 bucks on BrickLink! o_O
Lightsabers!

The clearish looking one on the far left is actually glow-in-the-dark! :D
Underwater...key...hooha...thingies...er...*shrugs*...

The purple is the most expensive and the rarest. It was only in like ONE underwater set and the MOST expensive underwater set at that (over a hundred bucks I believe).
Cowboy hats, y'all!

...not sure if that's all of them or not...the red might be a "test strike" piece.
Check these out!

Uber rare! Very, *VERY* expensive lil buggers, much cooler than the standard, boring, generic light gray for the engine pieces.
Next up, hard hats!

Maersk blue being the most rare/expensive...although they did recently come down in price a bit due to that new Maersk train set they released that had a few minifigs with said hard hats. The dark blue is a HTF, non-standard color, the cheapest one you can get, about 3 to 4 bucks EACH. There is one other HTF, non-standard color that I'm aware of, which is orange, but there's only THREE for sale (total) on BrickLink...and each one is nearly thirty bucks a pop! o_O
Hooks! AAAARRRRR matey!

The dark gray one is the only one I'm missing in my collection. The two rarest and most expensive are the pearl gold and the medium blue ones.
Shrooms man, SHROOOOOOOMS! :D

I just used a blank tan people head for the base of the large one, for teh picture, although in hindsight I probably should have used a 2x2 round tan brick piece...meh, whatever works! :)
It's a new wheelbarrow! :D

This is a brand new piece that came out this year...like, just a couple weeks ago in fact. I got mine before it was released to the general public though (in stores)...although some stores still might not have it.
There's two sets you can find it in, one is a recycling truck and the other is a tipper truck, both under twenty bucks I believe, pretty good deals.
This piece is interesting because the mold is actually ~very~ similar to a REALLY old Fabuland Lego piece from the 1980s.