Up for sale here is this set of 5 new wired grain-of-wheat light bulbs.

Specs:
Voltage: 6.3v AC/DC (they will work fine at 6v)
Current Draw: 70mA

Color: Warm White (incandescent)
Total Length: 12 inches

Bulb Diameter: 3mm

Polarity: Non-polar

These are nice warm white light bulbs and would work great for you. Please see my pictures for details.

US shipping and handling is $6, and international is $20, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

I have more light bulbs and lots of vintage electronics listed--feel free to take a look!