What was our solution? Follow the steps below to see. Keep in mind, what's shown is a prototype that doesn't address certain concerns such as, oh, water in an electrical circuit :0 So we don't recommend installing this exact setup in your own dishwasher, unless you do a little re-design.
Team: Ana Alves, Torrey Brenner, Zack Jacobson-Weaver & Gabriela Marcu from Eric Paulos' Activating Objects and developed in part at CodeLab.
Step 1: Step 1: Get the stuff
Tools: SHARP KNIFE (X-acto); STRAIGHT EDGE; RULER; CUTTING BOARD; HOT GLUE/GUN; DRILL w/ DRILL BIT INDEX, SOLDERING TOOLS/SOLDER; PC or MAC w/ ARDUINO SOFTWARE ; ARDUINO BOARD (PIC) (if you get a good kit, you'll have just about everything you need for the electronic stuff)...
Materials: FOAM CORE (otherwise something that would bio-degrade a little faster than 10,000 years); THIN DOWEL RODS; LED'S (in the kit); PIEZO SPEAKER (in the kit); ELECTRICAL WIRE (<= 22ga.); TACTILE SWITCH (pictured: not in kit); JUMPER WIRES (yup, kit); SOLDERLESS BREADBOARD (kit); PHOTO RESISTOR (kiz-nit); RESISTORS (kiiiittt); HATRED OF DIRTY DISHES (innate);