You’ll need a train, boat or plane to get to my ‘not so very’ local though. 😎
However… the scene is rigged, which is about the same as photo-edited to my old eyes and the OP did ask: but is it as unexpected as the guys are making it appear?
Over to you…

Airshows are expensive, yet are still cheaper than a football match of 90 minutes duration (Or 97 if MUFC were losing)

Apropos of that, how about people watching sport on TV rather than attending the venue. :dev2:
As a possible example, I’d find it hard to criticise a low-paid or unemployed father who watches airshows from the sidelines with his kids. It’s not stealing, anymore than listening to a rock concert from outside the enclosure.
In the distant past, I’ve attended airshows that have had reduced displays due to weather or technical no-shows and there was no partial refund of the expensive admission fee, so I like to keep things in perspective. There are far more serious things to get outraged about. 🙂

It’s a Bendix magneto from one of the Lycoming 720 series engines; it should have a part number/serial number identity plate on it somewhere. What are your plans for it? There’s nothing much you can do without the tooling/test facilities and it can’t (legally) be fitted to an aircraft unless it has the appropriate release documentation (such as a Form One stating Time Since Overhaul, Airworthiness Directives complied with, etc) I’m afraid.
It probably came off something like a QueenAir, Pawnee Brave or Aero Commander.

XV198 September 73, 12:10.
Aircraft carrying out rollers with No1 shut down for asymmetric training. No2 failed on climb-out and it crashed into the wood near the end of the runway almost vertically, left wing and nose first.

The ‘L’ section bulb angle part number for those dimensions (for a flat attach flange) is:
Douglas S1047299, Alcoa Die No K15644
If the flange is convex (1/64th from flat), the numbers will be:
Douglas S1059652, Alcoa Die No L24127

Look and Learn?

See here:
ECTA tyres.
Prior to that, tailwheel tyres usually had an earthing chain to dissipate the static charge.
Strangely though, the RAF C130Ks (back in the 70s, anyway) used to have a three foot copper rod and cable to keep everything at the same potential on the ground.

First thoughts: some pneumatic or fluid line couplings as well as a banjo and support or equipment stowage clip. No idea about the key-shaped bit.