I need method and sources to make such an item. In past years I have ordered table tent numbers but the top layer color scratches easily. Now with my trusty Shapeoko and your help, I can make my own set of table tent numbers.
I would glue two pieces (1/16" x 8" x 3") of contrasting opaque acrylic together, carve out the number through to the next color at both ends. Then flip it over so number are facing down, notch a “v” in the very center, essentially dividing the 8 x 3 into to 4 x 3. Only notch 3/4 of the way through, not all the way. Flip it over and using a heat gun, heat the opposite side of your “v channel” until the plastic folds down and closes the “v”.
I apologize if this sounds like a bunch of gibberish. I wish i had some pics.
@GIban671 I posted that two-color acrylic hastily before I really read your post carefully. That two-color acrylic is generally not the most durable (the top layer is really thin). Depending on the final application, two-color hdpe might be a better choice.
Both are easy to engrave.
Two color modified acrylics used for most indoor signs that you see are two layer with top cap that is usually a thousandth or two thick. Laser grade or rotary engravable. The brands are rowmark, and Gemini. Durable as any plain acrylic. vbit or diamond drag should work