4 Pcs B0219/2032 Coin Button Cell Battery Holder Case on/off Switch Black - Walmart.com
Amazon.com: Adafruit 2 x 2032 Coin Cell Battery Holder - 6V output with On/Off switch [ADA783] : Electronics
GitHub - sparkfun/LilyPad_Coin_Cell_Battery_Holder-Switched: LilyPad Coin Cell Battery Holder with on/off switch, made by and available from SparkFun Electronics.
Amazon.com: WMYCONGCONG 10 PCS 2X CR2032 Coin Button Cell Battery Holder Socket with On/Off Switch and Cover, Lead Wire Type : Electronics
Battery Holder for 2 x 20 mm Button Cell Battery with Switch