I searched for some labels to print and glue to barebones arduinos and I found two kinds:
1 - They looked great, but the links had expired (temporary hosting, modified dropbox links, etc).
2 - I could download them, but the lettering was too small.
So I made these on inkscape and I'm posting them here and on reddit.com/r/arduino/comments/8ui130/atmega328ppu_sticker_labels_with_bigger_fonts/
Feel free to share and modify them, no credit necessary.
Versus other sticker found online: Imgur: The magic of the Internet
By itself: Imgur: The magic of the Internet and Imgur: The magic of the Internet
Just print the attached pdf (no scaling) or open the zip to edit the svg source.
P.S. Extra links just to be sure:
https://nofile.io/f/PeVzHfNJzop/ATmega328P-PU+Pinout+label.pdf
https://nofile.io/f/xuFs0xdfpAu/ATmega328P-PU+Pinout+label.png
https://nofile.io/f/AX5nQFtYAza/ATmega328P-PU+Pinout+label.svg
https://multifilemirror.com/uh2d5rx7fpid/ATmega328P-PU%20Pinout%20label.zip.html
ATmega328P-PU Pinout label.pdf (54.4 KB)
ATmega328P-PU Pinout label.svg.zip (4.48 KB)