To start your design you must have nothing more than:
*a writing utensil
However, if you want to design a vehicle that you will be proud to put your school's name on you will also need:
*a graphing utility
* micrometer(if you have a thing for sig figs?)
**a good foundation in mathematics
**Those who do not possess these skills, yet. Have no fear there are countless resources at your disposal. For example the internet, public libraries, and your teachers. The internet, your on it now. Public libraries, they are free and full of helpful underpaid knowledgeable city employees know as librarians. The other option is your teachers. Who would be enthralled to have a student or non-student ask for their help and guide you. That is if you don't owe them any work.
is the SciOly wiki on mousetrap vehicle, an indispensable resource.
After reading the rules, read them again. The last thing you want to hear is, after all your hard work, "your disqualified."