OK, technically it isn't used as a chocolate mold; it is an ice tray. But I saw beyond that because the tray itself is made of food grade flexible silicone, and I have used that in the past to cast chocolate. When I saw this mold I could not resist.
Some of you may not know about Space Invaders, but it was THE computer game of my childhood, along with Pac-man and other Atari games (this was the 80's what do you expect?).
Since this mold is so intricate, we needed to airbrush it first with cocoa butter, and then we poured the chocolate in. For the same reason (the intricacy of the mold) and because it is a flexible mold, I didn't want to fill it with ganache or caramel, that would have made it a very complicated task. Instead, we mixed the tempered chocolate with pop-rocks and then poured it into the mold to fill it to the top. The 80's nostalgia came full circle in this confection.