Almost any human can remember 5 characters, at least for a short time. Admittedly it's not getting any easier with age but if a name is pronounceable and maybe even contains a dictionary word it makes the recall even easier. Here are some for your consideration.
GoEaz.com
IncZi.com
AyeMo.com
EyeYi.com
Makmm.com
Vibzi.com
Repnn.com
Radnn.com
MyBoz.com
These domains are parked and can be purchased at
Uniregistry
