The syntax is pretty simple. You'll want to use the UTF-16 form, which looks like this:
text(.5,.5,['Rocket = ', hex2dec('d83d') hex2dec('de80')])
The problem is going to be finding a font that includes it. Very few fonts contain characters like this. The only one I found on my machine was one named 'Segoe UI Symbol'. All of the others displayed "tofu" for this character.
