NTE Electronics Battery Holder CR2032 20mm Horizontal mount with PCB terminals - Micro Center
Amazon.com: Diitao 6PCS Battery Holder Coin Cell Holder, 1 x 3V CR2032 Battery Holder,Button Battery Holder with Leads On Off Switch (Black x 6pcs) : Electronics
Amazon.com: Mini Skater 2 x 3V CR2032 Spring Clip Black Plastic Button Battery Holder Case with 6 Inch Wire Lead ON-Off Switch.(Black,4 Pcs) : Electronics
Geelyda 12PCS CR2032 Battery Holder with Switch Plastic 2x3V Button Coin Cell CR2032 Battery Holder Case Box with Wire Lead ON-Off Switch (Black) - Walmart.com
2 x CR2032 Coin Cell Battery Holder - 6V output - On/Off switch : ID 783 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits