Not caterpillars, We are butterflies now!
Idea pops out at any time (yes! they do), as says Allen sir. Something similar happened to me. It had been ages since I drew anything artistic (except diagrams and figures in academics) for the last time. Then, today suddenly my wit asked me to make use of the newer look of Microsoft Paint in the Windows 7 RC platform. I started to use the pencil pointer in mspaint application but wasn’t sure about anything what I was really trying to figure out of the blank white-sheet. Again, an idea popped out. I thought to make something that was related with Microsoft Student Partners. Unknowing, I started flowing in my thoughts and then finally the thoughts blended out in the form(a JPEG Image) which is right in front of your eyes. 
To add a note in support of the image, I would like to thank the whole Microsoft MDP Nepal team who helped us to grow from the stage of a caterpillar to a newer and better stage.