This is the page containing information about Heartfield-related accessories. With the molded guitar cases being the most eye-catching accessory, as well as some other stuff as it gets submitted.
Older Heartfields were supplied in a black tolex case...

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Open (notice the spacer at the far left, built in so the short-scale instruments fit better)

A close-up of the spacer (standard-scale instruments wouldn't have these in their cases)
This is another style of generic black tolex case in which guitars were shipped.

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Latch detail
Later the official Heartfield "by Fender" case was introduced...

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Open bass version (notice 4 clamps instead of 3, and it's bigger on the inside too, obviously)

Detail of the "by Fender" logo
Finally, Fender-labelled Heartfield guitars were shipped in Fender cases.

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Latch detail

An official Heartfield guitar strap ("New Old Stock" in original transparent wrapping)

Close-up of the official Heartfield guitar strap

Another type of Heartfield guitar strap
(Another Heartfield T-shirt, and hat)
The Heartfield Talon jacket (from top to bottom the front, the back, front detail and back detail)
Photos courtesy of its proud owner, Paul S. Abrams