Space Invaders was a blast (pun intended) for the proto-nerd that I was when it came out. I spent many a quarter and many an evening on this arcade game. When I saw these erasers in the shape of the titular aliens at Half-Price Books, I couldn't resist buying a couple of packages. Here they are posing with a 30mm figure from Reaper's Chronoscope line.
5150: Star Navy; or I could stat them out for Song of Blades and Heroes; or I could use them as a surprise foe in a Dungeons & Dragons adventure; or I could mount them on 60mm bases to make a Hordes of the Things army .... I think I need to go back and buy some more of these.