Some cars I've made mostly at work, using ballpoint and gel pens:
https://live.staticflickr.com/65535/...3316f6b0_b.jpg
https://live.staticflickr.com/65535/...3a7cf4fb_b.jpg
https://live.staticflickr.com/65535/...62d9b67a_b.jpg
https://live.staticflickr.com/65535/...a1e269dd_b.jpg
https://live.staticflickr.com/65535/...1402dafa_b.jpg
https://live.staticflickr.com/65535/...b4a5298e_b.jpg