Here’s some retailers who literally thought “outside of the box” when they designed the buildings to sell their wares.  Their building is literally shaped like what they sell:

The Longaberger Company, sells handcrafted maple baskets.

Twistee Treat Ice Cream.  How could you drive past this?

The Hood (In Boston, sells dairy products.)

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United Equipment Company.  Can you imagine in the future when the building is demolished and they have to bulldoze it?

The Phoenix Financial Center.  Not many under the age of 40 would recognize this as “The Punchcard Building.”

I’m sure somewhere there’s an sex toy store that qualifies, but I couldn’t find any photos of one.

There’s a few more of them here.