'I'm never wearing them,' Ron said stubbornly. 'Never.'
'Fine,' snapped Mrs. Weasley. 'Go naked. And Harry, make sure to get a picture. Goodness knows I could do with a laugh.' Goblet of Fire ch. 10: Mayhem at the Ministry.
I know this isn't in the book, but I mean, come on, someone had to have thought of this! This is more of a 'could-have-happened' pic of a pic taken by Harry of Ron in nothing but his Chudley Cannons boxers! I have it on good authority that Ron begged Harry that if he wouldn't send the pic, he would wear the dress robe. Apparently, Harry lied! Enjoy at Ron's Expense! Mechanical pencil, pen, and prismacolor.