1.
The completely flat Braille lettering on these cans of apricots:
6.
The eraser on this pencil:
7.
The "Yes" button on this alert message:
8.
The doors on these bathroom stalls:
10.
The locks on this gate:
11.
This chain-link fence:
12.
This wheelchair ramp:
14.
This Star Wars coloring book:
15.
The Flash's motorcycle (I mean, really?):
16.
This to-the-minute digital display at a bus stop:
17.
The holes in this lid:
19.
The lock on this jar of McDonald's special sauce:
20.
This theft deterrent:
21.
And, finally, this pointless graffiti: