Description: Skeletal thumbs down icon. Thumbs down icon humor.

Description: Skeletal thumbs up icon. Thumbs up icon humor.

Description: Love trees. Celebrate Tree day.

Description: Stylized profile of Luna in her sphinx pose. White version.

Description: Round Greek key pattern design with Greek sail ship and playful dolphins. Red, distressed.

Description: Round Greek key pattern design with Greek sail ship and playful dolphins.

Description: Another version from the series "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai. Fibonacci sequence, golden ratio, fascinating artists and scientists for centuries.

Description: Another version from the series "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai. Executed in pop art style. Fibonacci sequence, golden ratio fascinating artists and scientists for centuries.

Description: Another version from the series "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai. Fibonacci sequence, golden ratio, fascinating artists and scientists for centuries.

Description: Another version from the series "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai. Fibonacci sequence, golden ratio fascinating artists and scientists for centuries. Linear, white.

Description: "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai. Fibonacci sequence, golden ratio fascinating artists and scientists for centuries.

Description: Great wave by Hokusai in a shape of human profile.

Description: Another version from the series "Hokusai Meets Fibonacci." Fibonacci spiral superimposed on "The Great Wave" by Hokusai in a shape of human head in profile. Fibonacci sequence, golden ratio fascinating artists and scientists for centuries.

Description: Dutch lion rampant, orange, oranje.

Description: Keep calm and carry on humor with carry on luggage.

Description: Variation on the theme of popular British WW2 motivational poster. With UK flag. Distressed.

Description: Funny version of the iconic French cabaret poster from 19th century. Black cat in the dark. Little fun with the famous French poster.

Description: Classic Latin saying "In vino veritas" (In wine there is truth), with wine glass, grapes and vines. Great for oenophiles, wine connoisseurs. Red version on a light colored shield shape. Distressed.

Description: Vino baby! Classic Latin saying "In vino veritas" (In wine there is truth), with wine glass, grapes and vines. Great for oenophiles, wine connoisseurs. On shield shape. White version.

Description: You had me at event horizon. No more singularity! Universal theory of love in in the universe, quantum physics humor. White version.

Description: You had me at event horizon. No more singularity! Universal theory of love in in the universe, quantum physics humor. Love in space time continuum.

Description: Earth Day, April 22. Stylized planet Earth.

Description: Stop planet abuse, Earth Day, April 22.

Description: Stop planet abuse, Earth Day, April 22.

Description: Stuff like Social Security, Medicare, Unemployment insurance, etc. Round, white.

Description: Stuff like Social Security, Medicare, Unemployment insurance, etc.

Description: Progressive for president. Buttigieg for 21st century. Action painting style, symbolizing diversity.

Description: Ban assault weapons now! Stop mass shootings!

Description: Ban Assault Weapons Now!

Description: Fibonacci spiral art in blues. Also known as golden ratio, divine proportion, golden section, Fibonacci sequence, phi. Fascinating artists, geeks and scientists for centuries. Celebrate Fibonacci day, November 23! 1,1,2,3.

Description: Llama with pointed mustache

Description: Anti greedy politician design. Mainly anti republican, GOP. Porcine, piggish.