For those that like to check their answers once in while but get tired of scrolling up to the menu, if you hit F11 it will take you to full screen mode so you can fit the puzzle and the menu on the same screen. Hitting F11 again will toggle you back to regular screen mode.

If anyone is interested, the knife pistol was priced at $2,875, they would probably accept a few hundred less. The blade is 8-1/2" long.

I shot this photo a few weeks ago, it's not a check valve although it does look like one. There are no correct guesses for it yet.

I agree with those who say keep the upcoming Queue but limit the number of posts that make it to the main page to just a couple a day.