Almost all the epoxy coatings from homedepot/lowes have a skid resistant power you throw in while mixing. Basically just little beads. They have a matte grey type color also.
I've used the race deck plastic tiles before alot on other applications. They suck if you are always moving them around. Also you cannot turn your wheel alot while on them and not moving or else they will all come unclipped and you'll have a fun time putting them back together.