I've finally created my first piece of official "Beautiful Muscle Girl Tetsuko" merchandise!
It features artwork created especially for the shirt, also incorporating previously posted art, on a lightweight white short-sleeve T-shirt. You can find it at CafePress, in the Tetsuko's Swag store.
$12.99 for sizes up to XL (add $3.00 for sizes 2XL - 4XL) plus shipping & handling.
Watch for more merchandise coming soon!