I wanted to make a QR for a local fund-raiser, and couldn't find one online that I loved - so I made this. Add a picture, change colors, customize the CSS (the QR Code is an SVG made of "rect" elements), download the QR as a .png, or copy and paste it somewhere if you're not using Firefox.
I didn't put in ads, trackers (that I'm aware of), etc. I'm using a CDN for bootstrap.
Hopefully this helps make someone else's day a little less difficult.