I have a coffee table tray and a lighter collection that ends up everywhere, so here's my solution.
The dip on the top of the bracket can hold a pen or another lighter or any other little knick-knacks that accumulate on your coffee table
Fits three standard size Bic lighters (with wiggle room for easy removal and replacement. scale down for a snugger fit).
3 1/2" long x 2" tall x 1" deep (total) the bracket for the tray is 1/4" deep and 3/4" long on the back side.
printed in PLA with supports on DaVinci MiniW
(apologies for the pictures, I don't know what happened there)