Feature request: mix waffles with and without legends in iron()

[awunderground]

Great package! Legends are redundant when I iron together more than three waffle plots with the same legend.

I could not find a way to eliminate legends without Error: ncol(x) == ncol(y) is not TRUE.

EXAMPLE:

boom <- c(red = 12, blue = 16)
boom2 <- c(red = 18, blue = 8)
iron(
  waffle(boom, rows = 2, size = 0.25),
  
  waffle(boom2, rows = 2, size = 0.25) +
    theme(legend.position = "none")
  
)

This may not be possible because of how iron() is built?

Thank you for your work!

[awunderground]

The ability to use faceting solves this issue. Thank you!