Hex Grate for 12 Centimeter Fan

I recently mounted a computer to a board to use as a teaching tool in a technology class. The only downside is that the fan was exposed. The last thing anyone wants is a kid to shove a finger in there (but frankly a high schooler would deserve the pain for their actions)
So! I designed this grate to cover the fan up without needing any glue or ties. It snaps into place snugly.
It may be a kind of niche design, but maybe someone will find some use out of it