Flash Kids' Corner: Taking Bobo to the Circus

From Adrien-Luc Sanders, former About.com Guide

Usually tents have those cute little tapering edges on the flaps, though, don’t they? No problem; we can do that. Click on the Eraser Tool in the toolbar; this tool lets you erase anything in the picture. If you look where it says Options, you can click on the dropdown to pick the size and shape of your eraser. I picked a fairly large round one.

Click along the bottom edges of the rectangle, really close together, to erase little arcs meeting in points, like a mouse nibbling away a bit of cheese.