Each single digit maps to exactly one consonant sound, and the peg is a short word built on it: 0 = /s/, 1 = /t/, 2 = /n/, 3 = /m/, 4 = /r/, 5 = /l/, 6 = /sh/, 7 = /k/, 8 = /f/, 9 = /b/.

0 ace · 1 tie · 2 hen · 3 emu · 4 arrow · 5 owl · 6 shoe · 7 cow · 8 ivy · 9 bee

Example story (make your own if this one doesn't stick): An ace of spades is tucked into a striped tie worn by a proud hen. The hen rides an emu, who is startled by an arrow loosed by a wise owl. The owl kicks off a shoe that bonks a cow; the cow blunders into a wall of ivy humming with one fat bee.