From Plants vs. Zombies Wiki
Avatarzan and Jane were swinging on a vine
Note: I am no longer switching my icon arbitrarily.
The original Gary avatar. Low quality, I know. That's why I replaced it.
Pinkie Pie from My Little Pony: Friendship is Magic.
Amy Rose from Sonic the Hedgehog.
My Halloween icon, Lanolin as a witch!
Buhdeuce from Breadwinners.
Woody from the Toy Story series.
Samson from Sesamstrasse.
Wubbzy from Wow Wow Wubbzy.
Gary in the Corn Alliance.
Gary with a rainbow background, in response to the U.S. legalization of gay marriage.
Curly Howard of the Three Stooges.
Christina Aguilera as seen in The Voice.
Master Xin from The Little Panda Fighter.
Goobie from The Oogieloves in the Big Balloon Adventure.
Lady Gaga as seen in the "Poker Face" music video.
Lisa Lopes, as known as Left Eye, from the group TLC, as seen in the Waterfalls music video.
Hit me with your screenshots
Colorful box, if not outdated.
Why does this happen? See description for more information.
Flower Potpourri
Daddy Derek's perception of I Hate Everything
Console images which stick around because why not
A Wii U, intended to replace the next two.
Vector Wii U console, replaced due to failure to show up.
A Color TV Game, which predates the NES.
And there's more where that came from.