Supplies
Below is an ideal list of the items required to run a workshop. These are hyperlinked to suppliers, however, there will be many other possible suppliers of these items.
Microcontrollers and Power Supplies
Arduino Uno Starter Kit
Arduino Uno and USB cable
9v-1A DC Power supplies for Arduinos
Motor shield for Arduino Unos
Motors
Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA
Stepper motor driver board
Continuous Rotation Servo - Futaba S148
3v-6v micro servo motors
5v to 9v DC motors
Cameras
Tools and Instruments
Digital calipers
Small wire cutters
Wire strippers
Small screwdrivers (flat-head and Philips)
Soldering iron with fine tip
Electronics prototyping breadboards
Helping third hand magnifier
Oscilloscope
Multimeter
Power Sources
9v batteries
9v battery clips for breadboards
9v battery clips with 5.5 mm barrel jack
Electronics Supplies
LEDs (various colors)
IR LEDs
10 K potentiometers
NPN Bipolar Transistors (PN2222)
1N4001 diodes
Slide switches
Tactile Switch
Resistors
Jumber wires
IR Break Beam Sensor - 3mm LEDs
Fluids Supplies
3-9V DC fluid pump
Tubing connectors
Penn-Plax® Flexible Tubing
Milkshake Straws
Roylco Straws and Connectors Building Kit
Dixi paper cups
Sensors
Analog temperature sensors (TMP36)
Hall effect sensor (US5881LUA) and rare earth magnet
Force Sensitive Resistor (Interlink 402)
Piezo Buzzer (PS1240)
Photo cell (CdS photoresistor)
As an alternative to individual sensors, a sensor pack can be purchased:
Sensor Pack
Other Supplies
Fresnel Magnifier
Fine diameter solder wire
Flux
Fine heat shrink tubing
Fine, insulated multistranded wires
Jumper wires
Fine Cable ties (4")
Small alligator clips
Hot-glue gun and hot glue
Cardboard (art-board) that can be cut with a knife or scissors
Art cutting knife
Scissors
Tape (cello tape, masking tape)
Masking tape
Rubber Bands
Corrugated Cardboard
Elmers glue
Piece Plastic Gear and Bushing Set
Bamboo Skewers
Round toothpicks
Here is an Excel file to download with all the hyperlinks and the prices as of January 2015.