Rubber Stamp Headings OccasionRubber Stamp Headings Occasion accentuate your balloons with this rubber stamp to print words, designs or characters on your balloons. Rubber stamps to create repeated patterns and symbols in his commercial work and in a few of his paintings. In the 1950s, numerous companies hired Warhol to illustrate their products, and his drawings often combined rubber stamping with a blotted line technique.