By this time, the famous green, white and yellow bus on which she herself had sat, unmoving, had become an exhibit at the Henry Ford Museum in Dearborn, Michigan.

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Yellow Blue Bus is all about the love (Ya lyublyu vas means 'I love you' in Russian).

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To promote itself in reality life, online glasses retailer Warby Parker launched the Warby Parker Class Trip, an old yellow school bus retrofitted as a Warby Parker show room and taking a six-month cross-country road trip to nine cities.

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"There are certain campaigns that have very distinctive artwork to break through, " he says, citing the bright yellow background and bus in Fox Searchlight's Little Miss Sunshine ads as example.

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The school bus is the big yellow kind, exactly the same as the one Liz once rode to elementary school, in that faraway place, that faraway land known as rural Ohio.

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Rather than ride into the park on snowmobiles from the town of West Yellowstone, we opted for a trip on a historic yellow snow coach -- kind of a small, boxy heated bus on tracks that were first used 50 years ago.

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