It was 1967 and my brother Charlie was a Senior at Michigan and a member of Sigma Nu fraternity. One his fraternity brothers had been to a party up in East Lansing earlier that year and saw that MSU stored Sparty at the Sig Ep fraternity house between home games so they decided to drive up there and kidnap him They were successful (read the article below for the details) so they painted a winged helmet on him and announced if State wanted him back they would have to go on the field at the Big House and take him. So my brother (that's him on the far right of the picture below) wore the now handsomely painted Sparty down onto the field and gave him back to somebody from State before the game.
Yeah State was pretty damn good that year going undefeated (only the mythical 10-10 tie with Notre Dame blemished their record) and they spanked us that day 34-0. But for a few days anyways Sparty called Ann Arbor home (actually Dexter to be precise) and he wore a maize n blue winged helmet instead of that stupid green thingie.