Signs make a statement at Women's March on Washington

(CNN)Marchers are sending a message to the new Trump administration through the signs they proudly hold above them.

In the sea of people gathering Saturday in Washington, colorful posters showcase the protesters' collective creativity.

Marchers waiting to board the Metro into the city. 📷 by @lylesandking #womensmarch

A photo posted by Alexandra King-Lyles (@alexandrasking) on

No poster, or person, was too small to participate in marches taking place in the United States and around the world.

Ursula is prepared to march on London today with her sisters #lovetrumpshate #womensmarchonlondon #womensmarch

A photo posted by Emily Morrison (@emilypreecemorrison) on

Several stores in the Washington area ran out of poster boards Friday night, prompting some to use boxes, cloth and even paper mâché.
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