Decided to take some time to play around with Inkscape because I'm terrible at drawing things by hand and I want to stand out from all the pixel-shit indiedevs, though I don't plan on using SVGs for my current project or even the next one. Eventually, I would like to use them for my dream game.
It's actually pretty easy once you get the hang of it. This already looks better than anything I've drawn.
Tip: Stick with solid outlines and solid colors with maybe a bit of shading. Don't go with the whole "gummy" look unless you want your game to look like a mobile game.