Many guerilla tactics are temporary so photograph your guerilla tactic in situ.
Post on your blog. Document your process/progress as well.
Give aesthetic consideration to your guerilla install/tactic. Anita has a great idea that I can image would be just lovely when first installed. Think color, materials, design....etc.
Sketch. add color. Sketch the guerilla tactic in situ.
Design It! from start to finish.