1.
This perfect number three:
4.
This handwriting that looks like it could be a font:
7.
This maximum perfection:
8.
This beautiful and unique note:
10.
This engineer's notes:
11.
This angry — yet artistic — note:
13.
This sultry-looking month:
15.
This labeled drawing:
17.
This note that looks like it was typed out:
18.
This whiteboard virtuoso:
20.
These labeled coffees:
22.
This chemistry thing:
23.
And the most important holiday: