I found these single ply maple veneer business card stock at Lee Valley Tool and Supply. I find it useful as shim stock for all of my wood working projects, particularly guitar and cigar box guitar neck adjustments.
My wife makes custom greeting cards and finds these maple blanks perfect for making unique highly personalized business cards and gift tags for her clients. I am sure there is many other creative ways to incorporate them into your projects and would love to hear your ideas.
Here is a description directly from the Lee Valley website……..
Veneer Business Cards
These 3-1/2″ x 2″ cards are single-ply maple that can be imprinted with a rubber stamp.
As the samples show, the stamp can be custom-made for gift or presentation tags or just a plain address.
A unique alternative to printed business cards that is not only inexpensive, but adds the final touch to a finely handcrafted project.
Although we have a good supply on hand, quantities are limited as this product is made from recycled factory offcuts.