POLL: Slinky or Etch-A-Sketch?
Safety pins are not even close to being sharp enough to pierce through cartilage. You would most likely end up messing it up horribly, crooked, bleeding and infected. If you think you are so mature you would know using a safety pin is the dumbest idea possible. By some hollow needles ($3 on for a set of 10 needles!)
pink and Yellow are the two maximum recognizable colorings, out of a pattern of 256 colorings. by way of fact they are the two used on each and all the failings you pronounced, i assume orange may well be the main appropriate colour.
A free-end fitting is a fitting (coupling, connector) that is added after, or during the installation of a piping system. A part the can be replaced easily. An example would be a union on threaded pipe. An integrated fitting (ring or otherwise) is a part of the piping system that is manufactured and or is permanently attached to the piping system, An example would be a pump that has a flange attached to it from a manufacturer. Another example would be a flange that is welled to the pipe, even field welded, a copper pipe with an elbow that is soldered to it etc.
