Mine

#meshbox replacement- better texturing
define mesh_box
mesh
	vertex 1 1 0
	vertex 1 -1 0
	vertex -1 -1 0
	vertex -1 1 0
	vertex 1 1 1
	vertex 1 -1 1
	vertex -1 -1 1
	vertex -1 1 1
	
	face
		vertices 0 1 2 3
	endface
	face
		vertices 1 0 4 5
	endface
	face
		vertices 2 1 5 6
	endface
	face
		vertices 3 2 6 7
	endface
	face
		vertices 0 3 7 4
	endface
	face
		vertices 7 6 5 4
	endface

	inside 0 0 0.5
end
enddef