For just one, do not use the label feature at all.


Create and use the shape you want under Insert Shape.
You can have rounded corners, ovals and some fairly weird shapes.
You can double-click on those and add text.
You can give a picture fill, etc.


Position it on the page to print properly with your printer.


Otherwise, if using labels, you are stuck with rectangles because labels are tables and table cells are always rectangles.


You can, if you want, put a shape inside the label, just as you can any graphic.
Graphics on labels by Graham Mayor, MVP

Thanks,
Those pre-loaded shapes don't work for me, I need to design my own shape with specific outline shape and dimensions, I know people use Adobe illustrator and photoshop but I'm not willing to buy those software since I don't do a lot of design stuff, I just want basic application to shape up the picture to avoid wasting ink on rectangular printouts.

My next option is probably edit the artwork in paint to white out all other parts of the rectangle that are not part of the artwork and hopefully when the print software sees white it prints nothing, and I believe there is a manual cut out feature in Paint, But all these manual processes take time.