The simplest way to protect intellectual property is to date sketches/drawings and mail them back to yourself. This ensures that your works are officially dated by a 3rd party (the Post Office in this case). You can then show it to others and have a slight legal foothold by claiming prior art.
That is the easiest way to get total bullshit-level documentation. Doesn’t protect you from much at all. This bullshit about mailing something to yourself might hold up in Judge Judy’s People’s Court… or maybe not. If you have something that can be protected by actual copyright (published works, music, software, etc) then you are screwing yourself by not filing for a copyright, its pretty cheap, easy, and fast once you learn the ropes.
If you expect there to be any easy way to file for a patent, you are mistaken. Its a long, expensive, and painful proccess.
Your basic problem is that you probably don’t have any protectable intellectual property in the first place. Life is tough, man, so wear a helmet.
The way something looks, for the most part, is not protectable.
You can’t patent ideas, by the way, no matter how clever or new they are. What you can patent are … methods or processes, or inventions. Not every idea is an invention. Yes, there are design patents that seem to cover what you’re interested in but… odds are very bad that you’ll be able to enjoy any real protection under a design patent.
If you can actually market your product, manufacture it, have it out there, and protect your ideas in the good old fashioned capitalist way… by being the one to dominate the market with them, then you will be able to afford some lawyers to scare off some of the ripoff artists and to better advise you.