Here's a one-size-fits-most, terrycloth wristband adorned with an embroidered Green Lantern symbol!  And....it's green!  Green Lantern wears this when playing a round of tennis........over the rings of Saturn!  All it takes is a hard-light net, some rackets the size of oxen and a ball the size of a black hole!  Space tennis! Green Lantern style! YEAH!