"Wikimedia Commons is a media file repository making available public domain and freely-licensed educational media content (images, sound and video clips) to everyone, in their own language. It acts as a common repository for the various projects of the Wikimedia Foundation, but you do not need to belong to one of those projects to use media hosted here. The repository is created and maintained not by paid archivists, but by volunteers."
Don't draw or design it yourself, unless you are a professional cartoonist or graphic designer. Your cartoon brand mascot is the cornerstone for your marketing and brand building program. You'll live with it for a long, long time - it is well worth it to get a professional involved.
Loads of baby boy clip art images are available, once you click your computer's mouse and get connected to the Internet. First, you must know what it is all about. It is about copying / cutting the pre-existing images. Yes, these images are already mostly in the books that have made their entry into the public domain for that purpose.