Small doodles of random items/patterns for a colouring book

I am looking to produce a colouring book, I need help in producing some basic doodles that i can then use as stencils. I can then use these repeatedly to create larger patterns/pages.

These should not be detailed doodles/sketches, just simple line art style images that i can then scan in and use in Illustrator or similar.

These should be random items like: flowers, leaves, arrows, swirls, patterns, rockets etc. The drawing/doodle style should be consistent among all doodles.

The style used in this image is what I am after: https://www.istockphoto.com/vector/hand-drawn-comic-elements-gm646397112-117222981

This is a good example of what I am hoping to achieve, https://www.amazon.co.uk/Swear-Word-Coloring-Book-Adults/dp/164001117X/ref=sr_1_5?dchild=1&keywords=adult+colouring+book&qid=1598289778&sr=8-5

You can see from some of the preview images that the pictures look complex but are essentially the same few images overlaid multiple times.

What I am hoping for is an A4 side or two filled with random doodles, that i can then scan in and cut into individual images that i can use to create my desired pages.

I hope I have explained this sufficiently! Thanks very much for reading.