coffee stencil cutting machine
An option beyond using a laser would be to purchase a craft cutting machine such as a Silhouette Cameo or similar. It uses a very sharp cutter that is moved over the surface of the material, cutting through to create your stencils. It is quieter and less expensive than a laser cutter. Additionally, a laser machine creates smoke and odors which may be challenging to address.

As Chris suggests, you may find a makerspace with such a device, although they are inexpensive enough to purchase. Laser machines are much more costly.