You don't need anything fancy ..... save your $$$ for fabric!
I have an old drawer and a piece of 1/4" plexi that I lay on top, with the flashlights inside.
Or you could even straddle the plexi over an in-use drawer.
Before I had my "set-up" I put a flashlight under the see-thru surround of my sewing machine.
Worked fine for smaller things. Actually, I still do it that way when small, to save getting the other out.
You can actually use one of your cutting rulers/squares instead of buying plexi.
Works in a pinch, but to me, I am too worried that it might snap from pressing on it, as I trace.