In the attached file, you can see already a full page of these stickers. Print as is (I set it as A/4 paper, please adjust it, if you need)

I added 2 settings to this file. You can use only one, if you need; I wanted to make a full tutorial for you, if you are planning to make any type of standalone stickers for sale.

1. kiss-cut settings (cut pressure: 45) - means that your main sticker sheet will leave a paper backing that holds the design in place. 
2. Cut-thru (or die-cut) stickers settings (Cut pressure: 112), which will cut all the way through the backing material.

if you use both (like in my design), you'll have all these rounded stickers separately, and you can get off a small outline too, so your customers will be able to easily peal off.

Once the cutting is finished, as I mentioned before, you can peal off the outline part, and you are ready to use and/or sell :)

(This design is a slightly updated Canva design, so not the best part for selling, but with these settings, you can make your own settings with any picture.)

Note: my M1 currently behaving strange, and the cut is not perfect. With the new design space, I don't know how to re-calibrate it.)