Dual 10K Volume Pot with on/off Switch

Single 1K Volume Pot 

20MM EC11 Potentiometer Encoder Switch

A "PS2" type joystick mounted on a pcb with pin headers. Make your own joystick controller with an Arduino. 

WS2812 5V 1010 (1mmx1mm) SMD RGB Addressable LED (Strip of 10pcs)

TM1637 4 Bits LED Display Module

0.8mm Tin Lead Solder Wire Tube Flux 40/60 with Flux Rosin Core for Welding PCB Work

CD4017BC is a 5-stage divide-by-10 Johnson counter with 10 decoded outputs and a carry out bit.