Designing is not an easy process but you have to get that spark that starts it. That's why, when you feel the spark make a quick note of your idea otherwise it will fade away. The next step is to take a piece of paper draw it and add your notes to it. Then put it aside and after 2-3 days have a look at it again, do some correction and try to find the suitable size and material. Show it to your friends or just call me so you will be able to get a picture of it and then you can still decide whether you'lldo it or not. Don't forget: turn to someone who is always creative !!