letter h (haitch)
>ASPIRATE
as pirate
ass pirate
as P, I R at E/a tee
A spire at E
lower case looks like a chair (chair e/cherry on top)/i on top, upside down 'u' below.
UPPER CASE looks like football goal posts/letter 'U' upside-down and right-side-up/mirrored channels/troughs.