Do Gmail stickers count? Google had limited edition stickers made way back in 2008, which I lucky enough to get. Their sticker set included keyboard shortcuts that you can stick onto your keyboard, a couple of designs that had a drawing and included "This belongs to firstname.lastname@example.org", and my favorite, a sparkly gmail logo sticker.
The Twenty Minute VC: Ben Einstein, General Partner @ Bolt VC
Why hardware is actually software wrapped in plastic