Onomatopoeia in Anni?

Onomatopoeia... anyone know how to do it?

Specifically, I would like to write syllables with precise vowel sounds using the Anniversary vowel diacritics, and have some other signifier mark to note that this is onomatopoeia. Like the signifier mark for proper nouns, etc. I figure much onomatopoeia is probably already a brief form.

Like different laugh sounds for instance: ha, hah, hee hee, haw, mwah mwah mwah... etc.

You might have guessed I'm making shorthand childrens' books! ;D I hope my large-size shorthand is looking good! (although the diaper-butt cartoon at the end leaves something to be desired admittedly...)  XD


(PS I just noticed I'm missing the vowel diacritic on the "so" - I fixed that just now on my hardcopy.)

--------------* edits *----------------------------------
Carlos' suggestion to use quotes was great!  Posting the book now:

Oops - "roll" has a dash diacritic mark, I added this just now.
And... now I have to rewrite my hardcopy b/c that's "crawl" not "roll".
I'm leaving this little back&forth up here to help encourage myself to stop slacking off and read more shorthand myself!

(my daughter has a slight addiction to being held and bounced on a "yoga ball"...)   :-D