I recently ran on the Paul Richards page where he explains the process of designing a new things through thumbnailing, he is very talented and busy man, just take a look at portfolio, and it's really fun to read his advices.
How I'm still practicing, I decided to apply learned lessons, here are some of my thumbs for new flying vehicle that I need for personal project.
Couldn't resist new idea, Thief bot's older brother the Para-bot. Here is just basic sketch about his behaviour, 1st sketch represent him thrown from the aircraft, then he is flying, using jetpack, some rough landing and rise up. Maybe I'll add some more detail later.
Para-bot updated, final look is defined.