Homemade ways to print - stickers / foil or self-adhesive paper

For a long time I have been wondering how you can print self-adhesive stickers on foil, or paper, etc., really cheaply.
I mean the possibility of printing stickers on the front panels for power supplies and other home-made devices. The best option would be a foil that does not get dirty as quickly as ordinary self-adhesive paper.
That's what I did for a while. Self-adhesive paper, printed on it with regular HP Photosmart inkjet and transparent self-adhesive foil on paper. I am looking for something cheaper because the prices have gone crazy lately.
The cost of home printing is much more expensive than going to a printing house only in a printing house will always spoil something. I give them a measured project in Corel every millimeter, they print and at home it turns out that the inscriptions do not match, the signs are not in the same place as in the project, etc., so I would prefer to continue doing it myself.
I am asking for some advice.

Rather not professional. From under the laminate you can see that it is an ordinary card and the point here is that it should be a sticker. I wonder if you can make a small plotter out of an ordinary printer and have fun with a different type of ink.

abart64 wrote:

The whole thing can be sprayed with a clear acrylic varnish, which will give a protective coating.

Exactly.

Paweł1000 wrote:

Another, much better solution is to print on a self-adhesive foil intended for a laser printer

Something more...