I just got into X-Wing about two weeks ago. I was looking online for other DIY projects for making X-Wing maps as my budget was blown for ships.
Then I remembered I had some interlocking foam floor mats that I wasn't using that I got from Target a few years back.
One side was too slippery, but the other side seemed decent. I did some cutting up of the other mats and made an X-Wing playing surface. Alas I measured wrong and it came out to 37" x 37".
I tried it out last Friday at a local game store. My friend liked it as the surface cut down on the slipping of ships and markers. The mats are very light but weighty enough not to move on the table.
After that, I decided to try out painting on a waste piece to see how paint would take to it. I was pleased that the foam absorbed the paint and still kept the surface as it is.
Here is the work-in-progress. Not a professional job, but it will do for now.