Trying to get 2 LEDs blinking of 3v mains supply
HERE are 6 flashing LEDS that operate on 3V DC (all variants of the same type). Yellow, green , red, ... . Here is the (not very good) datasheet of a red one.

Available in stock at Digikey.

Ensure the mains supplied 3VDC has a suitably large filter capacitor. 



Here is a simple circuit that will flash standard LEDs.
IC1 is a hex schmitt trigger inverter.
IC1 MUST have Schmitt trigger inputs (CD401065, 74HC14, ...)

IC1.1 is the oscillator.
R2 D1 (optional) shorten the low output period so IC1.3 / D2 has a short-on longer-off flash.  IC1.4/D3 has a long on / short off flash.
Mix and match as desired.
A single IC section can be used as a flasher allowing 6 per package if desired.







simulate this circuit &ndash; Schematic created using CircuitLab