Many helmets worn by soldiers in World War I had pictures painted on them like lightning bolts, dice, and targets. The 9th infantry regiment's helmets had targets painted on the tops of them that looked like bulls' eyes.
No, it is some type of colored tape used for decorating.
In 1948, Fred Gehrke, halfback for the Los Angeles Rams, painted horns on the Rams helmets.
No they do no normally come in pink or purple. However you can get a helmets custom painted at you local bike painting shop or at buymotorcyclehelmets.com.
No the pictures are decals. Each player has two helmets per game so they can change them out if need be during the game.
For decoration. Same reason some armies had brass eagles, or spikes, or painted shields, or unit crests on their helmets; decoration. In Vietnam, American GI's wrote griffiti on the cloth camoflage covers which adorned their steel helmets.
506th Parachute Infantry Regiment, 101st Airborne Division
The British were called "lobster-backs", "redcoats" because of their fiery red wool uniforms. Continental troops wore rags or farm clothes to war, until King George funded their uniforms and general George Washington picked the color blue. German Hessian Troops, also part of the British army, adorned purple and gold uniforms. these colors are unusual along with the hat or helmet the Hessian wore. The hats were shaped like cones or funnels on their head. The helmets were painted gold.See below for images-
lighthouses are painted different so they stand out
he painted in different colours and he painted really slowly
During WWII, the spade symbol was painted on helmets. In this sense, they were used to symbolize good luck to the people who wore them.