Teardown and exploration of Apple's Magsafe connector
MagSafe car charger
Apple 85W MagSafe 2 Power Adapter - Apple
Genuine Apple MacBook *MagSafe 2* AC Power Adapter - MacBookAdapter.com
45W Magsafe 2 T tip Car Charger Adapter for Apple MacBook Air 11 & 13 inch A1502 | eBay
45W Magsafe 2 T tip Car Charger Adapter for Apple MacBook Air 11 & 13 inch A1502 | eBay
Apple MagSafe 85W Power Adapter for 15" and 17" MacBook® Pro White MC556LL/A - Best Buy
Building a 12V DC MagSafe Charger | Big Mess o' Wires
Amazon.com: Sanpyl Magnetic T Tip USB C Adapter, Auto Alignment USB C Female to MagSafe2 T Tip Male Adapter, PD 100W Type C Fast Charging Adapter, for MacBook Air Pro : Electronics