Just because the Warforged is mentioned in a playtest doesn't mean it's in the PHB

[GreatLemur]

Actually you could do the same with _every_ non-human race:
dwarf? below-average height, broad-shouldered, bearded human
elf? androgyneous, slim human
halfling? (very) small human (if D&D had stats for children, just use those...)
gnome? see dwarf, except smaller
tiefling? human with a horned helmet
etc.

Shhhhh! You'll give away the whole scam!