uxcell SMD SMT Momentary Mini Tactile Push Button Switch, 3 x 4 x 2mm - - Amazon.com
mxuteuk 20pcs Latching Mini ON Off Switch Self-Lock Micro Push Button Switch 1.5A AC 250V for SMD Flashlight Type (10pcs Flat Pin with Hole + 10pcs Bent Pin with Hole) TC-KAN-28: Amazon.com:
KTS 5Pcs 5 way directions 12.5x12.5mm Navigation Push Button SMD 6pin Tactile Tact Switch Handy Digital camera Schalter Taster - - Amazon.com
Amazon.com: Gikfun 12x12x7.3 mm Tact Tactile Push Button Momentary SMD PCB Switch with Cap for Arduino (Pack of 25pcs) AE1027 : Industrial & Scientific