Bumpers? Wha? Our 'bumper' is made out of aluminum. Well...actually, it's the frame. Needless to say, we don't have a bumper (and never have...and never plan on it  ) I think I've seen people use fun-noodles, though. I'm not really sure. Just build your bot rugged so it can take a few hits 
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I'm a professional web developer. I'm good with PHP, Perl, Java/JSP, some RoR, XML, Javascript (AJAX as well), (x)HTML, CSS, etc.. Validated code is good; fully cross-browser code is better (you comply to your users and the software they use, not the other way around. Sorry!)
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