JAM Paper Push Pins, Gold, Standard Size, 100/Pack - Walmart.com
Moore 5/8" Moore Aluminum Push Pins - 100 Pack - M5-100
Push-Button Carbon Steel Flange Line Up Pins (FLUP) (Set of 2) #2121
TC2050-2X10 0.1" 20-pin to 2 x 10-Pin Header Adapter | Tag-Connect
Pololu - Mini Pushbutton Switch: PCB-Mount, 2-Pin, SPST, 50mA (5-Pack)
Amazon.com: Connectors Pro 25-Pack 6P 2.54mm 0.1" Pitch PCB Female Pin Headers 2x3 Dual Rows 6 Pins Female Sockets to Male Straight PCB DIP, Double Rows PC Board Through-Board Strip (2x3-6P-25PK) :
2.54mm R/A Double Row Female 2~40P PCB Board Right angle Pin Header socket Connector Pinheader 2*/4/6/10/20/40Pin For Arduino
Amazon.com: 600 Pieces Standard Computer Jumper Caps Header Pin Shunt Short Circuit 2-Pin Connector Open Top 2.54mm. Suitable for Arduino Raspberry Pi PCB PC DVD HDD Motherboard Shorting and Other Items. :
JST-PH 2-Pin SMT Right Angle Breakout Board : ID 1862 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits