Pictured here is the "Spin Top" version of the Giant Eagles. Spin Top contests were almost as popular as yo-yo contests in the 1950's.
The Giant Eagle patches were the largest of the Duncan patches, and highly sought after by competitors in the 1950's, and now by collectors. The Giant patches were a velour patch, with a thick textured face, sewn to a thick felt backing. These were usually affixed to a Duncan sweater, but I have also heard that some were awarded as patches.