Excellent! tape an Obama poster to stick, then tie the stick to their heads leaving the poster some few feet in front of them...perfect. Almost a perpetual motion machine! If the zombies get tired, or run out of energy, just feed 'em some other zombie. One could attract and herd 'em around with the same hopey-changey two-step graphic displays (with musical accompaniment).
I must say, you've come across a brilliant idea.
