PATIKIL 5mm LED Diode Light, 12 Pcs 6V DC Pre Wired Tiny LED Lights Bulb Light-Emitting Lamp for RC DIY Indicator Lighting, White Light

Here you go -- Search Amazon for "5mm LED Diode Light, 6V DC Pre Wired". A pack of 12 is about $5.50. There are a ton of different types on there, just search for "6V LED" and you'll find them. Or linked here