I will say the OP’s design looks cool, it’s certainly an interesting exercise and portfolio item.
People claim they break, but I’m yet to find one that wasn’t fixed fairly easily. With the intention of selling, I sand and paint them. But then they are so beautiful I can’t.
Best are the models ‘Major’ and above. The air vents look so good. Who needs to grind 20kgs of beans per day? Not me, but I can do this 5 or 6 times over.
People usually do that to specifically indicate that it has a problem of some sort, so someone else doesn't assume it's working. Although with a toaster, just the act of flipping it around to cut the cord might dislodge whatever toast bits were causing it to smoke and such in the first place.
A label of "Broken" or "Works" or "Missing X" is so much more helpful for appliances left out.