Ron thinks he smells like his Great Aunt Tessie. His dress robes are pretty out-dated though.

Tessie, Harry Potter Wiki

Tessie, Harry Potter Wiki

Costume Designer On Harry Potter Reveals Ron's Yule Ball Outfit Secret

I smell like my Great Aunt Tessie - Ron Weasley

Tessie, Harry Potter Wiki

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MuggleNet.com - “'I'm never wearing them,' Ron was saying stubbornly. 'Never.' 'Fine,' snapped Mrs. Weasley. 'Go naked. And Harry, make sure you get a picture of him. Goodness knows I could do

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Tessie, The Harry Potter Compendium

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