Really loving the style on these, and the relationship between the preview and full image is really clever. I'm definitely curious to know how an adventure game would use Pencil Shavings, a Sharpener, a Pencil, an Air Freshener, a Condom, Cheese, a Mushroom, Poo and Laxatives in puzzles.
Crits: I don't think the pencil shavings read very well as pencil shavings - perhaps because they're covered in shit. I also think the pencil would be more immediately recognisable if it was a tad bit longer and/or had a pink eraser on the end.
I'm trying to make up a story with these all involved... it can't be pretty.
Lookin' great anyway.
Is this for this week or last weeks challenge? ;)
Nice joke inside, but i am not sure if it makes the artwork better (as in covered with poo is not much of an improvement...)
The item which is in it's place in the preview holds a vital clue.
This is a dirty adventure, that's for sure!
Is the last item - bottom right - a turd with a piece of undigested corn in it?
...
Very original entry! 
Kaka :--)