Porcelain Scallop Christmas Holiday Sublimation Ornament, 2.875", Pierced, White Gloss, 2 Sided. Create exclusive ornaments that joyfully celebrate the holiday season! Dye Sub production of this porcelain will require .5" Nomex Felt (NOM-1255) and an 1/8" Heat Conductive Green Rubber Pad (HCR-1855), sold separately. Both pads must be at least 1" larger than the porcelain.