The MK2 Marker Holder was called an airplane marker holder by my kids. So I decided to make some Airplane Marker holders for my pilot relatives.
The F-22 holders were remixed from this model on Grabcad https://grabcad.com/library/f-22-raptor-2
Unfortunately these models are too complex for reasonable printing. It worked but there are gaps. I found another simpler model https://grabcad.com/library/f22-raptor-2 that is likely to work great.
Then I decided to make a more printable jet and created marker jet. This one is smaller and prints nicely in ABS.
The F22 pulls up easily in ABS. The marker jet should print easily.