Those are really cool. I might just print that out on magnetic paper. They have to be magnetic for my board.
I made these fuel makers a couple years ago but none of our group used them. Maybe if they were not chips my group might use them. Fuel Markers
Purple (numbered 1-7) These are my new chips to mark the spaces left that a plane can fly after combat. With so many planes in global 1940 we found it useful.
This second pic shows my IPC board which is a small replica of the main board. Here the board can be tilted perpendicular and still hold a stack of 30 chips.