If you are:
-Bored
-Owner of a computer
-with Acrobat Reader 4.0 and up
-a color (preferably) printer
-Like to build things
-Thinks F1 cars and Lamborghini's are cool
-has scissors, a hobby knife, tacky or white glue, and 8 1/2x11 cardstock
Then these paper models are for you! There are about 15 different F1 cars in 1/43 and 1/30 scale, and a Lamborghini Contach in Yellow, White, or Red, and a link to a site that has a blue one. I've built the Lambo, and it took me around 2-3 hours. Most of the time is cutting out the pieces, but building it is fun. You can use your built models to simulate crashes because the cars get realisticly dented up. Best yet, they're all free and you can print as many as you want to off your computer! Look at "Craft Processes" for building instructions. The site is in translated Japanese so it is kind of hard to understand in some places.
http://www.ne.jp/asahi/paper-m/yasu/0index/e_index.htm
Have Fun!
-Micro