No mask is perhaps more memorable to kids of the 90s than the Dripping Bleeding Mask series. Released in 1998 (still on store shelves today) these innovative, creative, special fx novelty masks made a strong impact by animating Halloween costumes with a trickling blood effect by squeeze of a pump. The mask is engineered to allow a formulated 'blood' product drip down the mask between two plastic layers and is recollected in the heart shaped pump for repeat action. This line continued to expand throughout the years, inviting new designs and characters into the collection. Some designs were also featured in costume variants.