The original model by @Yves427 is a neat idea - but I couldn't print on a 250x250 printer (even at a 45 degree angle). After some thinking about it; I realized that I could cut the bottom part off (since all it does is align with the original/complete player board) and just keep the top (which will then fit on a 250x250 print size printer).

**NOTE: make sure your surface is VERY clean (I wash mine with Dawn dish soap and then wipe with 99% isopropyl alcohol) as the piece is very prone to not sticking.