For those of you who were hoping for more Half-Life papercraft,
here is a little something until I can put together something more
elaborate. This is a paper model of the Mk2 grenade that appears in the Half-Life 1 video
game (as you might gather from the delightfully pixelated textures ^^).
At only four parts, it is a simple build. The PDF template for the
grenade may be downloaded here.