This idea just randomly popped into my head today...don't ask how :) Most of it will be carved out and won't be as stupendously fancy as a Swiss Army knife of course...
Step 1: Materials
-a popsicle (or two)
-a couple of craft knives (I stick with my little penknife)
-a pen with removable inner workings
-duct tape/hot glue/white glue/whatever that would hold something together tightly
-anything else that you would like to add to the jumble...
-pencil is optional for designing the layout
Step 2: Layout
Design where you want everything to be on your stick with a pencil. Also, take out the pen's ink.
Step 3: Carving
Start cutting, sawing, and carving! After that, glue on the ink cartridge thing.
Step 4: Yaaaaaaayy!
You're done! Are you satisfied?