Sure, there are lots of ways to make stamps. Do a google on "how to make stamps". As Onebyone mentioned, quilting with stamps in various ways was used when the craze on stamping was going on.
While I don't make stamps, I do make a lot of templates and want I call "snubs" that is a piece that I trim off as opposed to the template making a piece. I have vision issues and can have a hard time seeing the lines on rulers so I make the templates and snubs instead, only have to see well once. I usually have pieces of thin cardboard, like the ones fat quarters are sometimes wrapped around. I do a lot with the clear grid plastic so I can see the fabric beneath to fussy cut.
It sounds to me like you want to take some of the repetitive stuff out. If you don't care where the pattern of the fabric is, you can always make copies at the office supply store (if you don't have another copier option) and simply cut through it. I do a surprising amount of "quilting" at the copier, enlarging or reducing, mirror image, multiple copies.
I figured out before there were rotary cutters that a desk blotter (hard to find these days) was 22" wide (so half a width of fabric) and you could get pads of graph paper for them. I'd draw out my grids/triangles and could cut through 6 layers with my big old scissors.
This website is one of my bookmarks, it has grids for all sorts of things, hexes, tumbling blocks, diamonds...
https://www.incompetech.com/graphpaper/
I use it quite often, especially when I'm working on my quilting designs.