Luxury Erin Mills Content Sale › Set of 3 Stacked-Bubble Mercury Glass Pillar Holders Image 1 of 2 Image 2 of 2 Set of 3 Stacked-Bubble Mercury Glass Pillar Holders $30.00 Three mercury glass pillar holders with stacked bubble columns, in graduated heights. Add To Cart Added! Three mercury glass pillar holders with stacked bubble columns, in graduated heights.