5 Pcs 12 Position Pin DIP Switch for arduino projects Breadboard Friendly | eBay
Solution to loose DIP switches on breadboard: perfboard and 2,54mm/0.1in pin header. Put DIP switch legs and pin header into the SAME perfboard holes (from opposite sides, will fit both!). Slide header
6 Pin Slide Switch 2 Position Toggle Switch for PCB Breadboard Arduino DPDT | eBay