It's got to include a cycle race round the pitch

That would be my choice.

Seem to remember a few films where native american indians form a corridor and some miscreant has to run the gauntlet while being beaten with sticks.
As an example if you used Richard Lewis and charged everyone £2 to be in the line, or £1 if they fetched their own club you would probably have a very good crowd and raise much needed funds.
Advertise it well enough and you would probably see shirts from many other clubs. In fact you could create a new sport.
The RFL would surely be willing to lend us their Chief Exectutive for such a fun pastime.

All night rave!!

An extravaganza of a day for me with a series of different matches,like have been mentioned, turn it into a MM style day

followed by an evenings entertainment...
Kooks?
Large screen viewing of 'This Sporting Life'

A show that includes memories, maybe even turn it into an awards evening, similar to Sports Personality of the Year with different memories within and out of living memory are discussed.

Take up the pitch for transfer to Newmarket.
Get the soil ploughed up and soaked with plenty of water.
Two female bikini clad Rugby Teams.

Sorted!

Yep - that'll really get the party rocking.

It would be nice to see some sort of exhibition match - maybe a squad of all the great players who've pulled on a Trinity jersey vs the current playing squad? Not sure if that wouldn't be just as depressing though, in a 'here's what you could have won' type way.

It would be nice to get a decent crowd for a home game

Just a win in the last game would do me. If we lose that game I'll not want to set foot in the place again!

The Cribs to play a farewell gig at the old place,that way we'd at least be guaranteed entertanment one last time!

Oh I wish my opinions were as good as yours

Bill Nelson playing 'Adventures in a Yorkshire Landscape' on the top of the boxes. (look him up on that popular video hosting website)

Good call..."Crying to the sky" would be a suitable finalle.