Yes, a cat and a skimmer. I'm only posting the skimmer build info to this forum though. You'll have to check out the evil-mad-scientists forum for the kitty diy.
All the parts for the body match up, but I mangled some of the measurements on the parts for the cup, so gotta go get them re-cut sometime this week. Pump (a single eheim 1103 for now) showed up already, so could have it running next weekend at the earliest.
I'm having a tough time coming up with the best way to set the cup on the skimmer body that doesn't require a lot of construction finesse or extremely precise measurements.