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"Some days even my lucky rocketship underpants don't help. " -Calvin
"Lucky" Rocketship underpants
These are Calvin's favorite pair. He wears them not only as such but also as a good luck charm and confidence booster, in order to get through tough school days. Sometimes, however, they don't help, as one Sunday strip depicts him wearing them, ready to face the day, only for everything to go wrong.