Can you answer these three questions for your badge . What do people need to do to earn it. Who will award the badge. whose your badge aimed at? For bonus points can you say what skill the earner will gain by taking this badge
Do a sketch with at least three concept ideas for what your badge could look like and it here.
Take the design you like most, it's good to ask others what they think at this point. Then make a digital version of it on software you know or use makebadg.es. Once you've uploaded your final design your done!