Inline sprites in Unity's text?

How can I use different materials when using the tag for Unity’s rich text syntax?

I want to be able to have sprites that are inline with my text without having to create custom fonts.

Here’s what I have so far:
alt text

Here’s the syntax that I’m using for the text in my image:

Planetary <quad material=1 size=20 x=0.1 y=0.1 width=0.1 height=0.1 /> Intergalactic

I’m guessing “material=1” refers to the material index of the Text object. How can I set it to use a different material altogether?

Is there a plugin or other resource that makes embedding icons in text easier?

Considered making the inline icons as font glyphs?