The main part of a hot air balloon is the envelope, which is the large rounded top section. Begin with a simple oval shape or ...

Begin by sketching a long oval shape in the middle of the page. This will be the butterfly’s body. Add a small circle on top ...

While I was checking out News YCombinator website (a good source of fresh news, by the way), I came across a rather plain page (full specifications as PDF file) When I was a kid I liked to draw ...