Most of the gift shops have the basic plain ones, maybe some with glitter and maybe one or two printed design ones. Not as much as the parks. Just a base level. This is what I recall from Pop when I was there in August. Experienced same at Riviera and Coronado recently.
Off the top of my head I think they usually run $29.99? Maybe $10 more if limited edition? Someone can chime in on that to correct me.