Create fantastic animal pictures with amazing airbrush effects with the blo pens animal activity set r using the animal stencils simply put your favourite one on a piece of paper choose a coloured blo pen and blow to watch your drawing appear with fantastic effects r get creative and try blowing harder and softer for different effects or blow in line and circles to add a new dimension to your pictures r you can finish off by using the blo pens as normal pens to add the finishing touch the