Need a specific value current sense resistor, perhaps to customize your INA219 DC current sensor?  This handy 1% 2W 2512 resistor kit from Stackpole may come in handy. It’s not particularly cheap ($84 USD), but it’s still a very good value since it includes 25 each of 27 different resistor values between 0.0005 and 0.75 ohms (675 total), and many of those resistors are around $1 a piece in single quantities.