Since I made them using Powerpoint, I'm sharing here the custom version.
The page allows you to print ten tags at the same time, though you have to manually add the name to each of them (there is probably a way to do this automatically but I'm not savvy enough to do it, and copy/paste does the trick anyway without much effort).
It's easy, does not take a lot of time, the tags are custom made and still cheaper than store bought tags. And if you don't have adhesive paper you can always print them on regular paper and glue them in place.
I'm working on a boy version for my son and I hopefully will be able to post about it soon.