WH138-1 B5K Rotary Linear Potentiometer with SPST Switch, 5K Ohm
Logarithmic Potentiometer 10K + Switch
power supply - Circuit of a potentiometer with switch - Electrical Engineering Stack Exchange
PO6M+S-LOG 10K: Rotary potentiometer + switch, log., 6 mm, mono, 10 kOhm at reichelt elektronik
Panel Mount 10K Dual Linear Potentiometer w/ On-Off Switch [10K Dual Linear w/ Switch] : ID 3393 : $1.75 : Adafruit Industries, Unique & fun DIY electronics and kits