Tube of your choice.
I am using the artwork of LadyMishka.
you can find his tubes at PDF.
Scrapkit - by ScrappingMar
You can download at ScrappingMar.
Named "HappyStPatrick" - HERE
Size 700x700 / transparent
Go to the material and choose a background.
Go to Layers / load save mask / from disk
I use DBV Mask 35
Save as - PNG
(Now I close the image. And pick it up again)
Then add the desired tubes in the picture
Replace the copyright and your license number.
And your picture is finished: D