The fact that the sign exists is only part of the funny aspect. Good example would be Oktoberfest. What got me was the way they have depicted the drunken person. Crawling across the street or falling down in the street while still clutching onto their hootch. Too funny. And I know we all know someone this reminds us of. ;-D
One of my favorite combos is blending chalk pastels over dried glue. I’m always on the lookout for new subject matter, so when I saw this cactus illustration, I knew it would make a great image, and allow for some simple shading practice.