Well if you're taking a couple of tins of beans with you, you could throw those at the birds and then you wouldn't need a stone, Mr "No need for extra redundancy"
Haha, I like it but I actually hate tinned baked beans.
If I was lucky enough to get a ticket (and as a non season ticket holder in tier 3 area it's unlikely at best), I'd bring the thing in every available format and bring a ton of ID. No room for error.
*Mr Donkey arrives at the County Ground with two holdalls and a 70 litre rucksack - well, he is a donkey after all*
Ticket Office Betty: Ok Mr Donkey, that's fine enjoy the m-
Dokey: No, no hold on. I have this too *presents paper birth certificate and driving licence*
TOB: Yeah, you're good to-
D: One second, there's this *unzips holdall one, revealing evidence of 20 years worth of Greenshield Collection stamps whilst smiling smugly*
TOB: Mr Donkey...please go and ta-
D: Hang about Betty, look *opens holdall two, from what emerges a large charter scroll containing family tree detail dating back to AD 752* more proof!
TOB:*Beginning to look pissed off* Listen, others are waiting to get into the gr-
D: I'm not taking any risks, I'm seeing that match! *takes off rucksack, producing every single utility bill and traceable proof of address since who knows when and proceeds to empty the whole contents onto the desk* There you are, all the proof you need!
TOB: *Radios security* This is TOB1, we have a 10-15. I repeat a 10-15.
*Donkey is escorted away from SN1*
D: But, but I was making sure I had ee-aaw my ID!!