Find it here.

Allows you to use a variety of objects to create custom level-icon graphics.

There is also a forum topic where some Newgrounds-ers have gotten pretty creative with the fairly meager assembly of objects that made it into the project. Find that here.

UNLOCKABLES

Since this has been requested by multiple people, here is the run-down on unlockables (unfortunately, there are only 7) and how to achieve them:

1. Electric Guitar - unlocked by scrolling all the way to the bottom of the Misc. category.
2. Golden folding chair - unlocked by successfully drawing with a paint.
3. SWF - unlocked by using the delete trach-can icon.
4. Mr. T - unlocked by changing size/depth control to the Depth setting.
5. Dead Kitty Krew Kat - unlocked by having used/placed 10 or more total objects.
6. Clock face - unlocked by placing both the strawberry and the crown onto the stage at the same time.
7. Severed Penicorn horn - unlocked by scrolling through all options on an item with 5 or more colors/styles.

Left to right, top to bottom:

Flaming guitar
Bone
Folding chair
Taser
Shovel
Pimp staff
Flanged mace
Red-hot fire poker
Frying pan
Pitch fork
Desert Eagle
Spork
... Mr. T