ok get a 3 volt motor from a model shop, attach a wheel, then attach a craft type blade stick it out the back of your robot, their you have a weapon!
or get a servo attach a crappy piece of hdpe to it, then you got a lifter,
like i said it may not work or be effective but its a weapon!!!
if this rule is implemented ,and everyone does this , then the rule might as well not be there anyway . And a lot of people new to robots buy 2 channel radios as they are the cheapest and they may not be able to afford a 3 channel + radio (my first radio was 2 channel) so they would not be able to build a bot (clasifying things like thwack bots is a very gray area , i did think of it ). sorry but im still against this rule , i encourage dis encouraging people to build ram bots and such , but i don think its right to ban them.