Frosted Bubble Paperweight Cobalt Art Glass Paperweight by Michael Trimpol. This is an absolutely beautiful Frosted Bubble Paperweight Cobalt Art Glass Paperweight by Michael Trimpol. The piece is frosted with a clear front facet which reveals a gorgeous cobalt blue ball encircled with floating controlled bubbles. This is mesmerizing to look at and pulls you in because if it’s awesome 3D dimensional effect. The piece measures approximately 4.5″ high by 3″ across and is in perfect condition with no anomalies. The piece is also signed/etched by the artist, Michael Trimpol on the underside. This piece is such an elegant jewel that looks fabulous near a light s ource and would add an element of sophistication and elegance to any interior decor.