Here is a link to a great list of Fire Fighter themed activities! Following the link is a copy of the directions for the craft we chose to do.
You will need: watered down non-toxic paint, paper, pipettes and straws. Supply each child with a straw and a piece of paper. Allow the children to use the pipette (or medicine dropper NOT GLASS) to place a small amount of paint onto a piece of paper. They may use as many colors as they wish. Then, have them use the straw to blow the paint around their picture.
Notes: I forgot to water down our paint so it did not spread as well as it should have so we ended up using our straws to spread and mix the paint!