trueSpace 7.6 model side and physics in workspace. Paint Shop Pro 7 for text, textures, and composing the boxes. I used the physics simulation in workspace to let the nails and gears fall into the bowls. The dirt around the brake drum and Rusties box is a rust texture on a plane with a circular gradient transparency.

The side panel says things like:

Ingredients

Things 7385 more things
Items and Tasties 8569
Assorted powders 345
Some liquids 345
Gasses as well 4986