You don't want your favorite medals collecting dust 11 months out of the year, do you? How about taking your absolute favorites and putting them on a necklace!
Maybe you take the ones for the Spurs and wear the necklace to home games. Or you take some that are primarily colored in your favorite color (purple? red? blue?) to wear with your favorite outfits. The design ideas are endless!
I wouldn't do Fiesta medal earrings. Unless you're able to find some that are really light.