Diacritical variants of "i" and "e"

[Bluetoes101]

You can take the whole thing a step further with "a" or "ei". It might as well be "eii" (if you just consider the building block pen strokes). 
There's always some odd-ball cases, but for the most part I believe this to be correct.

"eii" choose a "swish" or add 1-3 more "i" then finish with a "swish".