Adam and eve farting
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
rAinbow A's
Many "A"s in different colours
15 "A"'s in all different colors
A's in an assortment of colors
colored lines
A single pixel as it appears on most screens that I know of; A red line, a green line and a blue line, all right against each other.
2 old women vs anthropomorphic marshmallow wielding a sword
Doodle or Die is the game of "telephone" with drawing!