I recall seeing this in a fake article about the TTTE fanbase (I can't find it anymore, but I know images of this costume were used on it). Toz76 from the real fanbase left a comment on it and, among other things, pointed out how we don't dress up as engines.
Even the official ones that look like vests or have the engine around the body are far superior, such as this Percy:
Even the official ones that look like vests or have the engine around the body are far superior, such as this Percy: