AY
BY
CRY
DRY
FLY
FRY
FYRD
GYPSY
GYVE
HYMN
HYP
LYMPH
LYNCH
LYNX
MYTH
MY
PLY
PYGMY
PYX
RHYTHM
SHY
SHYLY
SKY
SPRY
SPY
STY
STYX
SYLPH
SYZYGY
THYMY
TRY
TRYST
WRY
WYND

Got it from an engineer here in our office who was studying vowels for a week now