Yeah, I didn't know either before I joined the board and visited the Trek Art forum. It does apparently mean that you're using parts of different commercially available model kit to build a new model. Aww, thanks, PK! It's a nice image, isn't it? Somehow it reminds me of my own childhood. It also brings back nice memories of early DS9. It's kind of an iconic image for DS9, methinks. I was inspired by one of the caps in the Trek Screencap Game thread in General Trek. I just had to transform it into an animation.