Here are some less common colored porcelain - actual postage additional -- all in good condition

Great blue colored spool from Australia -- inkstamped NGK / 1962 / MADE IN JAPAN -- $12 (SOLD)

unmarked speckled blue spool from Australia -- $10

light blue unmarked blue spool from Australia -- $8

Very cool wall insulator (designed to insulate a wire through a wall) with a bright red stripe! Likely of European origin and in great condition. -- $15 (SOLD)