Quantity   Component name
1 × 1uF 2.5mm Ceramic Cap
1 × LIR2032 rechargeable 3.2V lithium button cell
1 × 20mm Button battery holder vertical
2 × QRE1114 (or QRE1113) IR proximity Detectors
2 × 8mm Disk Vibration Motors
2 × 1K 0.25W resistor
2 × 10K 0.25W resistor
2 × BC337 Transistor
1 × micro on/off switch
2 × small tooth brushes
1 × 8mm plastic bead
1 × 8pin DIP turned pin low level socket.
1 × PIC12F510 or PIC12F675 8pin DIP processor.
1 × OSH BLF PCB https://oshpark.com/shared_projects/J0ijb4Q4